BLGW is #1 among it's competitors in Europe and the #3 contender in United States.
BLGW has harnessed the power of over 40k bloggers worldwide to create an adverting monster.
I'm sure Google is watching closely, as they are all about advertising and recently made a bid for mobile advertiser Admob for $750MM
BLGW could definitely be in line for as a buyout candidate since they are still cheap. This would allow another big company to buy them before they get too big.