Who decides?

Laura Dewis has blogged about “Allmyfaves” which seems to be an aggregator for web sites it describes as “the creme de la creme”. Not only is it an interesting (and not particularly new) new idea but does it raise some questions about who mediates the web. As the whole thing is already bigger than anyone can embrace we need to rely on signposts so who should we allow to guide us? How can we tell who is credible? Why should we trust this site or Google or Yahoo? No sign here of who the “favies” are, the people who determine the ranking, so do they work for one of the big organizations or are they the same as you and I? Is this another SNS or are we being “sold to”?