It's a new advertisement that appears as the 2nd post on any page of a given thread. It's made to resemble a forum post, as opposed to a typical ad. The poster is CurlyGurus, and the post title is "Check out these links for more information." Unlike real posts, the background on this is light pink, and the only content is links to products or videos related to the first real post prior to the ad.
CG since 11/2011
2c /3a F /Mii, low porosity

Fall Products /Routine:
Clarifying: Herbal Essences Tealightfully Clean
Low Poo: Renpure Luxurious Argan Oil
CO: Suave Naturals Tropical Coconut or Daily Clarifying, V05 Strawberry or Kiwi Lime
Tresemme Perfectly (un)Done, Cure Care, V05 Kiwi Lime Squeeze, V05 Strawberry, Renpure Brazilian Keratin (old formula),
PT: IAGirl's as needed