WPP's results are closely watched as they say so much about the relative performance of various marketing services including public relations. They also give a global view. There's a straw to cling on to, but worse is expected from 2009:
Public relations and public affairs was the fastest growing communications services sector on a like-for-like basis. New technologies and new media have, once again, demonstrated the power of editorial publicity through fast-growing new applications such as MySpace, YouTube, Facebook, Flickr and Wikipedia… In addition, public relations and public affairs have benefitted [sic] from the impact of polling techniques, which have provided a more scientific basis for the industry.