Resources

These pages have a good list of current User groups:
http://agilealliance.org/show/1641
http://agileleadershipnetwork.org/groups
http://www.scrumalliance.org/user_groups

Local Groups:  These may be Scrum groups, but usually they are general Agile groups.

 US Groups:

Atlanta:                                Atlanta Scrum Users Group
Austin:                                 Agile Austin
Baltimore/Columbia:         APLN Maryland
Baltimore/Washington:     Agile Maryland
Boston:                                Agile Boston
                                             Boston Agile Bazaar  
Carolinas:                            Agile Carolinas
Connecticut:                        Agile Connecticut
Des Moines:                        Agile Iowa
Philadelphia:                       AgilePhilly
San Francisco Bay Area:    Bay APLN
                                             Bay APLN Yahoo Group
Twin Cities, MN:                 OTUG Agile Experience Group

International Groups:

Argentina:                          Ágiles Argentina
                                            Latin American Community of Scrum
Belgium:                             Agile in Belgium
Canada:                              Ottawa Agile
France:                               French Scrum User Group 
Germany:                          German Yahoo Group
India:                                  Agile Scrum Hyderabad
The Netherlands:              Agile Holland
Peru:                                  Agile Peru
Ukraine:                             Agile Ukraine