A definitive Comparison of Yahoo Groups Vs Google Groups Vs CommonFloor for Apartment communication & management VS VS

Feature Yahoo!Groups Google Groups CommonFloor On web Access Yes(Needs Yahoo Id) Yes(Needs Google Id) Yes (Any email id) Email Access to discussions Yes Yes Yes Polls Yes No Yes File Uploads/Sharing Yes Yes Yes Photo Gallery Yes No Yes Public page Yes Yes(Advanced) Yes

Feature Yahoo!Groups Google Groups CommonFloor Online Issue & Complaints Tracker No No Yes Maintenance Tracker No No Yes Locality information No No Yes Online Notice Board No No Yes Expert Corner(articles) No No Yes SMS notifications No No Yes

Feature Yahoo!Groups Google Groups CommonFloor Moderation Yes Yes Yes Database Yes No Yes Member Profiles Not detailed, only Yahoo profiles Yes, limited profiles Yes, Detailed Profiles Calendar Yes No Scheduler Attachments Yes Yes Yes Security(SSL) Yes Yes Yes, Thawte Certified

Feature Yahoo!Groups Google Groups CommonFloor Local Classifieds (City wide) No No Yes Citywide Entertainment Information No No Yes Enhanced Member Management and verification No No Yes Apartment /Residential Society Specific No No Yes One to one Communication between members No No Yes Private Groups within the Group No No Yes