A few monthes ago, I registered to Siphs, a social network for researchers. I didn't play with it a long time, as it was a little bit buggy, not much populated,.... However, I still receive e-mail from this site and today I received a mail about an impressive text mining tool called Information Hyperlinked over Proteins (iHOP).
A network of concurring genes and proteins extends through the scientific literature touching on phenotypes, pathologies and gene function. iHOP provides this network as a natural way of accessing millions of PubMed abstracts. By using genes and proteins as hyperlinks between sentences and abstracts, the information in PubMed can be converted into one navigable resource, bringing all advantages of the internet to scientific literature research.
iHOP was written by Dr Robert Hoffmann and published in Nature Genetics 36, 664 (2004): Hoffmann, R., Valencia, A. A gene network for navigating the literature.