Here's a list of some Scrabble resources that might be of help. Feel free to suggest any you find useful.
cross-tables.com At this site, you'll find listings of tournaments in North America, as well as "live results" when tournaments are happening.
Online play: Woogles, ISC, ScrabbleGo, PlayScrabble.com
NASPA, WGPO, CoCo are the three North American Scrabble associations. Membership info, player materials, ratings are listed on their sites. Each has Facebook communities as well.
Software tools: Zyzzyva is a NASPA member tool for word adjudication and study. Quackle is a great tool for game analysis.
Tournament materials: Player scoresheet, tally slip