Resources

Sailnet
Sailnet is a highly active forum with loads of very knowledgeable users who go out of their way to spread info around. It also has a high percentage of internet whackjobs, pontificators, flame wars and wankers. Want an afternoon of fun and hijinks? Post a question on sailnet about which anchor you should buy. Then sit back and watch people go apeshit.
Cruisers Forum
Another sailing forum with loads of smart experienced sailors. This particular forum is geared to the cruising spectrum of sailing and a bit more mellow than Sailnet.
Three Sheets Northwest
Three Sheets Northwest is an online magazine for the sailing community in the Pacific Northwest.