so one time i found a website related to rockstar social club or something it might have been the social club but anyway when i was there i got to this place where it showed the most popular snapmatic and now i dont know the name of the site do any of you guys know

I don't know about the picture of the month, but you can see the popular ones here...
http://socialclub.rockstargames.com/games/gtav/xbox/snapmatic/popular

Sounds like something the Social Club would do, maybe as part of a screenshot competition?