Guild Wars Insider is a periodical newsletter made by Arena Net.
Here is an official description from: GuildWars.com:
- Don't rely on rumors that may or may not be true. Don't waste time combing the Web for scraps of information you can't even verify. Get the scoop from the inside — delivered to your inbox. If you want the latest Guild Wars news, straight from the source, then subscribe to the Guild Wars Insider newsletter. Each issue will include tips and tricks to improve your game, the latest news about upcoming products and events, sneak peeks into new features coming down the pipeline, and exclusive interviews and insights from the very people who make the game — the Guild Wars development team.
To subscribe just follow this link: http://www.guildwars.com/support/newsletter/subscribe.php