Yes:
http://support.chess.com/Knowledgebase/Article/View/93/13/how-do-the-time-controls-work-in-the-live-chess
Well I m not sure but here we have 2:1 & 5:2 preset time controls available wherein after every move u would've 1 sec increment in ur total time left on d clock
I think Bronstein advocated a delay system around the same time Fischer advocated his increment system. The only difference being that under Bronstein's system, each player would have a period of time before their clock continued counting down, where with the Fischer method, a player can actually add time to their clock by playing quicker than the increment being used.
Is Fischer timing played on this site (some time on your clock plus so many seconds for each move you make)?