i-cite mashes up and cross-links information from PubMed, Google Scholar and CiteXplore. It automatically recognizes citations in Wikipedia and some other sites and adds "cites", "cited by" information and links to corresponding Google Scholar and PubMed entries.
It employs text mining tools to recognize protein names in PubMed abstracts and link them to corresponding UniProt entries and to recognize chemical compounds and add a popup displaying their two-dimensional structure.
More information about i-cite can be found in the following publications (in order of increasing detail):
(1) R. Easty and N. Nikolov (2009) Mashing up life science literature resources. Joint IEEE/ACM Conf. on Digital Libraries. http://portal.acm.org/citation.cfm?id=1555473&dl=ACM
(2) R. Easty and N. Nikolov (2009) Client-side Integration of Life Science Literature Resources. Bioinformatics (Oxford Univ. Press). http://bioinformatics.oxfordjournals.org/cgi/reprint/btp550?ijkey=T46zDvfgYIaTzec&keytype=ref
This is still an experimental release. Please help us improve i-cite by submitting your comments/feature requests/bug reports.