scot184 - 7:12 pm on Mar 13, 2010 (gmt 0)

As far as CPC is concerned, it probably has no impact, as the blockers wouldn't click the ads even if they did appear.

There's a good chance the more techy readers aren't the ones bringing in your revenue...

With CPM in mind, it's a bit dodgy...but this is the nature of the internet...

Paywall is a clear fail.