Abstract: A system and method for ranking content creators are described. The method for ranking content creators may comprises collecting endorsements associated with a content creator; qualifying the authors of the endorsements; building a creator network, applying an endorsement weighting function to the endorsements; assigning a score to the content creators; and ordering a collection of content items based on the items' assigned score. The identities of content creators are verified by matching content creators in a database to a publicly available online profile. Creators are entered into a creator network consisting of an edges and nodes graph and a weighting function is applied, resulting in a fixed-point score for each creator in the network. These fixed-point scores are inherited by content items produced by the creators and may be used to order a collection of content items pulled from a database.

Abstract: A roof tile made of a composition of matter comprising cement, silica sand, iron oxide pigment, acrylic polymer resin, an antifoaming agent and water, and formed into a shape having a top surface, a bottom surface, a top end, a butt end, and with a longitudinal side edge having a longitudinal flange, and another longitudinal side edge having a longitudinal concavity, with a plurality of ribs formed in the bottom surface, and reinforcing wire embedded in said ribs and the bottom perimeter of the tile.