If you want to start out with SnG's I would strongly recommend picking up a copy of Collin Moshman's Sit 'n Go Strategy
. In the beginning, you will often be mercilessly exploited but don't let this get you down, just keep studying and playing and you will improve. There are also some articles on CardsChat that discuss hand selection, position, and other topics for new players.
You didn't say how much experience you already have; if you have absolutely no poker experience at all, I would recommend that you not deposit yet until you get a little bit of play under your belt.
Play money tables are a good way to get started on practicing the basics of betting, position, calculating pot odds
, and more, just make sure you don't stay there too long because the way people play at play money tables bears no resemblance to real money
. Also, you can try freerolls
, although these will generally be MTT's, however they are a great way to get experience at no cost. Black Chip Poker has $10 on-demand freerolls going 24/7, and of course there is the freeroll club available here which is the best deal you will find anywhere.
has more traffic in SnG's than Carbon, they recently introduced $1 STT's with 10 minute blind levels which is great because all they had in the past for this buy-in were super turbos with 3 minute levels.
Good luck with your future endeavors