Adsense and SEO Tricks

I just noticed this thing last week when I installed the a WordPress plugin in one of my websites. The key to this trick is the Facestream plugin for Buddypress. What this plugin do is to synchronize your Activity Stream (Buddypress site) with your Facebook status. What you post in Facebook will also be posted in your Activity stream. What if you register 1,000 Buddypress accounts (with Facestream) installed? It means a link posted in your Facebook will also be posted 1,000 times across all those Buddypress accounts. You can have those links crawled by pinging your profile page in each Buddypress site (as your activities are posted in your profile).
To get a list of sites with Facestream installed, you may use the following search syntax in Google and Yahoo.
[CODE]“posted a facebook link” inurl:activity[/CODE]