diff --git a/netbox_devices.go b/netbox_devices.go
index f5cf7ed..795392d 100644
--- a/netbox_devices.go
+++ b/netbox_devices.go
@@ -4,7 +4,6 @@ import (
 	"bytes"
 	"crypto/tls"
 	"encoding/json"
-	"fmt"
 	"io/ioutil"
 	"net/http"
 	"net/url"
@@ -417,10 +416,6 @@ func (n *NetBox) UpdateDevice(v *DcimUpdateDevice, id int) error {
 		Timeout:   timeout,
 		Transport: transport,
 	}
-	fmt.Println("DEBUG DATA == RESPONSE FROM CLIENT")
-	fmt.Printf("%+v\n", string(data))
-	fmt.Println("DEBUG DATA == RESPONSE FROM CLIENT")
-
 	request, err := http.NewRequest("PATCH", n.RootURL+"/api/dcim/devices/"+strconv.Itoa(id)+"/", bytes.NewBuffer(data))
 	if err != nil {
 		return err
@@ -428,23 +423,11 @@ func (n *NetBox) UpdateDevice(v *DcimUpdateDevice, id int) error {
 	request.Header.Add("Accept", "application/json")
 	request.Header.Add("Content-Type", "application/json")
 	request.Header.Add("Authorization", " Token "+n.Token)
-	response, err := client.Do(request)
+
+	_, err = client.Do(request)
 	if err != nil {
 		return err
 	}
 
-	koko, _ := ioutil.ReadAll(response.Body)
-	fmt.Println("DEBUG DATA === response from server")
-	fmt.Printf("%+v\n", string(koko))
-	fmt.Println("DEBUG DATA === response from server")
-
-	err = response.Body.Close()
-	if err != nil {
-		return err
-	}
-
-	if response.StatusCode == http.StatusOK {
-		return nil
-	}
-	return errors.Errorf("Error: response was: %d should be %d\n", response.StatusCode, http.StatusCreated)
+	return nil
 }
diff --git a/netbox_site_groups.go b/netbox_site_groups.go
new file mode 100644
index 0000000..5b16497
--- /dev/null
+++ b/netbox_site_groups.go
@@ -0,0 +1,157 @@
+package netboxgo
+
+import (
+	"crypto/tls"
+	"encoding/json"
+
+	//	"fmt"
+	"io/ioutil"
+	"net/http"
+	"net/url"
+	"time"
+
+	"github.com/gorilla/schema"
+	"github.com/pkg/errors"
+)
+
+type SiteGroupsList struct {
+	Count    int             `json:"count"`
+	Next     string          `json:"next"`
+	Previous string          `json:"previous"`
+	Results  []SiteGroupList `json:"results"`
+}
+
+type SiteGroupList struct {
+	ID      int    `json:"id"`
+	URL     string `json:"url"`
+	Display string `json:"display"`
+	Name    string `json:"name"`
+	Slug    string `json:"slug"`
+	Parent  struct {
+		ID        int    `json:"id"`
+		URL       string `json:"url"`
+		Display   string `json:"display"`
+		Name      string `json:"name"`
+		Slug      string `json:"slug"`
+		SiteCount int    `json:"site_count"`
+		Depth     int    `json:"_depth"`
+	} `json:"parent"`
+	Description  string `json:"description"`
+	CustomFields struct {
+	} `json:"custom_fields"`
+	Created     string    `json:"created"`
+	LastUpdated time.Time `json:"last_updated"`
+	SiteCount   int       `json:"site_count"`
+	Depth       int       `json:"_depth"`
+}
+
+// SiteFilter is used to filter out returned object from Netbox API tenancy_tenants_list
+type SiteGroupFilter struct {
+	Offset int64 `schema:"offset,omitempty"`
+	Limit  int64 `schema:"limit,omitempty"`
+
+	// User specific filters
+	Name        string `schema:"name,omitempty"`
+	ID          string `schema:"id,omitempty"`
+	Slug        string `schema:"slug,omitempty"`
+	Description string `schema:"description,omitempty"`
+	Group       string `schema:"group,omitempty"`
+	GroupID     string `schema:"group_id,omitempty"`
+	Parent      string `schema:"parent,omitempty"`
+	IDIn        string `schema:"id__in,omitempty"`
+	Q           string `schema:"q,omitempty"`
+	Tag         string `schema:"tag,omitempty"`
+}
+
+// ListSitegroups returns Netbox tenancy_tenants_list
+func (n *NetBox) ListSiteGroups(i *SiteGroupsList, f *SiteFilter) error {
+	encoder := schema.NewEncoder()
+
+	form := url.Values{}
+	err := encoder.Encode(f, form)
+	if err != nil {
+		return err
+	}
+	query := form.Encode()
+
+	transport := &http.Transport{
+		TLSClientConfig: &tls.Config{InsecureSkipVerify: n.InsecureSkipVerify},
+	}
+	timeout := time.Duration(60 * time.Second)
+	client := &http.Client{
+		Timeout:   timeout,
+		Transport: transport,
+	}
+	request, err := http.NewRequest("GET", n.RootURL+"/api/dcim/sites/?"+query, nil)
+	if err != nil {
+		return err
+	}
+	request.Header.Add("Accept", "application/json")
+	request.Header.Add("Authorization", " Token "+n.Token)
+	response, err := client.Do(request)
+	if err != nil {
+		return err
+	}
+
+	if response.StatusCode != http.StatusOK {
+		return errors.Errorf("Error: response was: %d should be %d\n", response.StatusCode, http.StatusOK)
+	}
+
+	data, err := ioutil.ReadAll(response.Body)
+	if err != nil {
+		return err
+	}
+
+	err = response.Body.Close()
+	if err != nil {
+		return err
+	}
+
+	err = json.Unmarshal(data, &i)
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+// GetSiteGroup returns a Netbox site-group
+func (n *NetBox) GetSiteGroup(i *SiteGroupList, id string) error {
+	transport := &http.Transport{
+		TLSClientConfig: &tls.Config{InsecureSkipVerify: n.InsecureSkipVerify},
+	}
+	timeout := time.Duration(60 * time.Second)
+	client := &http.Client{
+		Timeout:   timeout,
+		Transport: transport,
+	}
+	request, err := http.NewRequest("GET", n.RootURL+"/api/dcim/site-groups/"+id, nil)
+	if err != nil {
+		return err
+	}
+	request.Header.Add("Accept", "application/json")
+	request.Header.Add("Authorization", " Token "+n.Token)
+	response, err := client.Do(request)
+	if err != nil {
+		return err
+	}
+
+	if response.StatusCode != http.StatusOK {
+		return errors.Errorf("Error: response was: %d should be %d\n", response.StatusCode, http.StatusOK)
+	}
+
+	data, err := ioutil.ReadAll(response.Body)
+	if err != nil {
+		return err
+	}
+
+	err = response.Body.Close()
+	if err != nil {
+		return err
+	}
+
+	err = json.Unmarshal(data, &i)
+	if err != nil {
+		return err
+	}
+	return nil
+}
diff --git a/netbox_sites.go b/netbox_sites.go
new file mode 100644
index 0000000..033799d
--- /dev/null
+++ b/netbox_sites.go
@@ -0,0 +1,198 @@
+package netboxgo
+
+import (
+	"crypto/tls"
+	"encoding/json"
+
+	//	"fmt"
+	"io/ioutil"
+	"net/http"
+	"net/url"
+	"time"
+
+	"github.com/gorilla/schema"
+	"github.com/pkg/errors"
+)
+
+type SitesList struct {
+	Count    int        `json:"count"`
+	Next     string     `json:"next"`
+	Previous string     `json:"previous"`
+	Results  []SiteList `json:"results"`
+}
+
+type SiteList struct {
+	ID      int    `json:"id"`
+	URL     string `json:"url"`
+	Display string `json:"display"`
+	Name    string `json:"name"`
+	Slug    string `json:"slug"`
+	Status  struct {
+		Label string `json:"label"`
+		Value string `json:"value"`
+	} `json:"status"`
+	Region struct {
+		ID        int    `json:"id"`
+		URL       string `json:"url"`
+		Display   string `json:"display"`
+		Name      string `json:"name"`
+		Slug      string `json:"slug"`
+		SiteCount int    `json:"site_count"`
+		Depth     int    `json:"_depth"`
+	} `json:"region"`
+	Group struct {
+		ID        int    `json:"id"`
+		URL       string `json:"url"`
+		Display   string `json:"display"`
+		Name      string `json:"name"`
+		Slug      string `json:"slug"`
+		SiteCount int    `json:"site_count"`
+		Depth     int    `json:"_depth"`
+	} `json:"group"`
+	Tenant struct {
+		ID      int    `json:"id"`
+		URL     string `json:"url"`
+		Display string `json:"display"`
+		Name    string `json:"name"`
+		Slug    string `json:"slug"`
+	} `json:"tenant"`
+	Facility        string `json:"facility"`
+	Asn             int    `json:"asn"`
+	TimeZone        string `json:"time_zone"`
+	Description     string `json:"description"`
+	PhysicalAddress string `json:"physical_address"`
+	ShippingAddress string `json:"shipping_address"`
+	Latitude        string `json:"latitude"`
+	Longitude       string `json:"longitude"`
+	ContactName     string `json:"contact_name"`
+	ContactPhone    string `json:"contact_phone"`
+	ContactEmail    string `json:"contact_email"`
+	Comments        string `json:"comments"`
+	Tags            []struct {
+		ID      int    `json:"id"`
+		URL     string `json:"url"`
+		Display string `json:"display"`
+		Name    string `json:"name"`
+		Slug    string `json:"slug"`
+		Color   string `json:"color"`
+	} `json:"tags"`
+	CustomFields struct {
+	} `json:"custom_fields"`
+	Created             string    `json:"created"`
+	LastUpdated         time.Time `json:"last_updated"`
+	CircuitCount        int       `json:"circuit_count"`
+	DeviceCount         int       `json:"device_count"`
+	PrefixCount         int       `json:"prefix_count"`
+	RackCount           int       `json:"rack_count"`
+	VirtualmachineCount int       `json:"virtualmachine_count"`
+	VlanCount           int       `json:"vlan_count"`
+}
+
+// SiteFilter is used to filter out returned object from Netbox API tenancy_tenants_list
+type SiteFilter struct {
+	Offset int64 `schema:"offset,omitempty"`
+	Limit  int64 `schema:"limit,omitempty"`
+
+	// User specific filters
+	Name    string `schema:"name,omitempty"`
+	ID      string `schema:"id,omitempty"`
+	Slug    string `schema:"slug,omitempty"`
+	Group   string `schema:"group,omitempty"`
+	GroupID string `schema:"group_id,omitempty"`
+	IDIn    string `schema:"id__in,omitempty"`
+	Q       string `schema:"q,omitempty"`
+	Tag     string `schema:"tag,omitempty"`
+}
+
+// ListTenants returns Netbox tenancy_tenants_list
+func (n *NetBox) ListSites(i *SitesList, f *SiteFilter) error {
+	encoder := schema.NewEncoder()
+
+	form := url.Values{}
+	err := encoder.Encode(f, form)
+	if err != nil {
+		return err
+	}
+	query := form.Encode()
+
+	transport := &http.Transport{
+		TLSClientConfig: &tls.Config{InsecureSkipVerify: n.InsecureSkipVerify},
+	}
+	timeout := time.Duration(60 * time.Second)
+	client := &http.Client{
+		Timeout:   timeout,
+		Transport: transport,
+	}
+	request, err := http.NewRequest("GET", n.RootURL+"/api/dcim/sites/?"+query, nil)
+	if err != nil {
+		return err
+	}
+	request.Header.Add("Accept", "application/json")
+	request.Header.Add("Authorization", " Token "+n.Token)
+	response, err := client.Do(request)
+	if err != nil {
+		return err
+	}
+
+	if response.StatusCode != http.StatusOK {
+		return errors.Errorf("Error: response was: %d should be %d\n", response.StatusCode, http.StatusOK)
+	}
+
+	data, err := ioutil.ReadAll(response.Body)
+	if err != nil {
+		return err
+	}
+
+	err = response.Body.Close()
+	if err != nil {
+		return err
+	}
+
+	err = json.Unmarshal(data, &i)
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+// GetSite returns Netbox tenancy_tenants_list
+func (n *NetBox) GetSite(i *SiteList, id string) error {
+	transport := &http.Transport{
+		TLSClientConfig: &tls.Config{InsecureSkipVerify: n.InsecureSkipVerify},
+	}
+	timeout := time.Duration(60 * time.Second)
+	client := &http.Client{
+		Timeout:   timeout,
+		Transport: transport,
+	}
+	request, err := http.NewRequest("GET", n.RootURL+"/api/dcim/sites/"+id, nil)
+	if err != nil {
+		return err
+	}
+	request.Header.Add("Accept", "application/json")
+	request.Header.Add("Authorization", " Token "+n.Token)
+	response, err := client.Do(request)
+	if err != nil {
+		return err
+	}
+
+	if response.StatusCode != http.StatusOK {
+		return errors.Errorf("Error: response was: %d should be %d\n", response.StatusCode, http.StatusOK)
+	}
+
+	data, err := ioutil.ReadAll(response.Body)
+	if err != nil {
+		return err
+	}
+
+	err = response.Body.Close()
+	if err != nil {
+		return err
+	}
+
+	err = json.Unmarshal(data, &i)
+	if err != nil {
+		return err
+	}
+	return nil
+}