I don't really play it much anymore but I'm more than willing to meet new players. When I do play, it's usually on Yahoo Games. A better one can be found on a Canasta Club community I started in UC Berkeley. Feel free to leave a comment or an email with your Yahoo ID, what room to meet in, and the time and day if you want a match against me. I don't consider myself an expert, but I'm more than decent at the game.
The new update in the Yahoo Games software in September 2006 seems to have thrown off a lot of people. For those having a problem joining a game once a room (says table is attempting to pop up but won't), do check your Norton Internet Security if you have one. Even if you disabled the pop up blocker on that, it'll block the table in the Ad blocker. Yep, it thinks the Yahoo Games table is an ad. To fix this, go to Advanced and remove urls that have "yahoo" in them. Hope that helps! I noticed quite a few players lately having problems joining games.