The CHECKMAT website is good resource for CHECKMAT team members. There you find Academy information should you want to drop in and train while out of town; team information, news, updates and much more.
BJJ Heroes is a great resource with lots of information about past and current BJJ icons.
The IBJJF website has lots of useful information regarding upcoming IBJJF Competitions, Rules, and Rankings. The IBJJF tournaments are among the most prestigious in the BJJ community. IBJJF is the governing body for competition Jiu-Jitsu.
Jiu Jitsu World League is a tournament organizer that has many competitions around the country.
Grappling X is a tournament organizer that has many regional events.