The quick and dirty:
Rating: 3 stars
Length: Solidly long (381 pages)
Publication: August 3, 2010 from Daw Books
Premise: Dev Logan is the mastermind behind Omnitopia, one of the most popular online games in the world. It already provides more player universes than any other company, but there's a big expansion in three days and the company is poised to hit the button and go live. The system is vulnerable in that window because of the updates, and rivals are trying to send in hackers to destroy the system. Dev and his team are good, but superior numbers draw closer and closer, even as the system itself starts reacting in unpredictable ways.
Warnings: People being mean to each other? There's a very brief mention of past pedophilia being hidden in one of the Microcosms, but there's nothing nasty front-and center here.
Recommendation: If you're into online gaming of any sort, this one is definitely worth a look, both for the humor about the existing culture and the speculation about what it could be. If you're not....the early parts move slowly, but the middle is quite good once it takes off, so it depends on how much patience you have this week.