This is what happens when you grab all the profile descriptions of followers to the various research councils' twitter accounts and plug them into Tagul. The tag cloud displays the top 300 most common tags, weighted by frequency. Make of it what you will.
@Research_UK (RCUK) (1,485 followers)
@AHRCpress (1082 folllowers)
@ESRC (917 followers)
@EPSRC (1,671 followers)
@BBSRC (979 followers)