Wondering why certain Twitters are being suggested to follow over the people you know? Thank Twitter’s ingenious advertising plan.

All Things Digital’s Media Memo revealed yesterday that paid suggestions is just one of three advertising plans being put to use by Twitter:

The idea is a simple one, people familiar with the company’s plans tell me: Twitter will try to help corporations and brands increase their Twitter following by inserting them alongside other Twitter users it suggests in its “Who to Follow” feature.

Don’t fret, though. If you’re not a fan of say Greta Van Susteren or Jimmy Carter, you won’t be inundated with their profile pics forever locked in your Who To Follow. Twitter’s algorithm will ensure just because someone pays to promote their Twitter, they won’t spam people who aren’t relevant to your friends and followers.

The official announcement will come shortly. The adoption of this in campaign promotion and outreach will be the thundering noise to follow.