3++ is the New Black
3++ is the New Black, more commonly known as just 3++ or 3plusplus, is one of the foremost Warhammer 40,000 websites. Unlike the (many, many) hobby-focused sites, 3++ is focused solely on competitive/tournament play.
3++ does have many very good articles for those that prefer the most competitive aspect of 40k, but they have a well-deserved reputation for being somewhat abrasive and opinionated. For instance, they whined about the "lacking competitiveness" of the 6th edition Eldar Codex before it was released... despite the fact that they had no solid information to base it on, and, in fact, got the rumors wrong.
Oh, and in case you don't understand the title, it's a reference to 3+ Invulnerable saves, which are often called "3++" saves. Ironically, 3++ saves are not, in fact, the new black; rerollable 2++ saves are, thanks to Screamerstar in the new Chaos Daemons Codex.