Original Post 3/14...
You can now "watch" the Mets Spring Training games on MLB.com's Gameday. I'm not sure if this is normally a free service or not but go to Them Mets for info on how to use this service for future games.

Also, you can go to the MLB Scoreboard for your team's abbreviation with some exceptions (i.e; Marlins = FLO).

Update...

If you're like me and are at work for most day games, the guys at 6-4-2 will be posting daily links to Gameday for every team this year.