Publish or Perish is an interesting (and free) piece of software, that obtains citations using Google Scholar and then analyses them in various ways. In particular it makes use of h-indices, which have been proposed as a "fairer" citation metric.
I've been in correspondence with the developers over the past couple of months and they kindly let me know that a native Linux version, built using GTK+ 2.x is now available. If citation analysis is your thing, give it a try and let the authors know what you think.
