Interesting editorial. As someone looking for work (in the UK), I am looking mainly at http://www.reed.co.uk (which tells you the number of people who have applied), http://www.cwjobs.co.uk and http://www.jobsite.co.uk - all user friendly in that you can put in a keyword and your location and get back sensible results (i.e. a defined radius is used). I also check a number of other less-friendly sites.
The irritations are (in no particular order):-
* few, if any, relevent jobs at the moment
* agencies posting the same job multiple times
* agencies lying about where the job is, or not specifying the town or specifying a number of towns