Earlier this week, hubby came across a website Arenapwnage.com. As a druid/hunter team we are always looking for tips to improve our arena game. At this site they have instructional videos, class tips and forums to answer questions or discuss arena issues with high end arena players.
Since we just got the account this week (there is a fee) we can't really give our opinion as yet. Once we have really gotten into the site and all it has to offer we'll be able to provide you with our thumbs up OR down on this arena website tool.