Neighborhood Organizations and Websites-

Adair Park - http://www.neighborhoodlink.com/atlanta/adair.
Ansley Park - http://www.ansleypark.org/.
Avondale Estates -  http://avondaleestates.org.
Brookhaven - http://www.buckhead.org/brookhaven
Buckhead and surrounding-  http://www.buckhead.net/neighborhoods/
Berkeley Park -  http://www.berkeleypark.org/
Brookwood Hills - http://www.buckhead.org/brookwood-hills
Candler Park - http://www.candlerpark.org/
Collier Hills/Ardmore -  http://www.buckhead.org/collier-hills/
Decatur -   http://www.decatur-ga.com/
Druid Hills - http://www.druidhills.org/
East Atlanta - http://www.eaca.net/
East Lake -  http://www.eastlake.org/
East Point -  http://www.eastpointneighbors.com/
Edgewood - http://www.oneedgewood.homestead.com/
Garden Hills - http://www.buckhead.org/gardenhills
Grant Park -  http://gpna.org/ 
Historic Atlanta  -  http://www.preserveatlanta.com/
http://www.cr.nps.gov/nr/travel/atlanta/   http://www.atlhist.org/
Inman  Park -  http://www.inmanpark.org/
Kirkwood - www.historic-kirkwood.com
Lake Claire - www.lakeclaire.org
LaVista Park - www.lavistapark.org
Lenox Park - http://www.mlpa.org/
Little Five Points - http://www.l5p.com
Midtown - www.midtownatlanta.org
Morningside - http://www.mlpa.org/
Oakhurst - http://www.oakhurstga.org/ona/
Ormewood - http://www.sandatlanta.org/
Peachtree Hills - http://www.peachtree-hills.org/
Peachtree Park - http://www.buckhead.org/peachtreepark
Tuxedo Park - http://www.buckhead.org/tuxedopark
Virginia Highland - http://www.vahi.org/
If you have other neighborhoods you would like to know about just ask...