1. A method for delivering author specific content, comprising: identifying any content on multiple online resources that appears to have been generated by a specific identified author; determining whether to authenticate authorship of the content and selectively authenticating content that appears to have been generated by the specific identified author as actually being generated by that author; delivering to a subscribing user, via an activity stream, an indication of the content identified as being by the specific identified author from the multiple online resources; and storing an author database that stores an identification of a first author along with a string provided by a content site having content generated by the first author, the string identifying a key that encrypts the first author's identification and the Universal Resource Locator (URL) of the content site.
4. The method of claim 1 , wherein authenticating the content includes using a digital signature to authenticate the content as being generated by the specific identified author.