The ever-popular "Adblock" plugin for browsers has been bought by an unnamed source which requested anonymity (you can imagine why). Adblock boasts 40 million users.
In any case, Adblock will now be participating in the Acceptable Ads program started by Adblock Plus. The goal of the program is to block aggressive online advertising (flash and pop-up ads and such), while allowing and encouraging less aggressive advertising.
Below is the full text of the announcement, as seen in an Adblock pop-up.