I've been trawling through pages and pages of job listings today - specifically looking for positions that require graduates, because I think I'll have better luck with those than with many other jobs - and I've noticed something rather unsettling.
There appear to be more advertised positions in the recruitment/human resources/head-hunting sector than all the other sectors put together.
Which I can only assume means that London is heading for some sort of 'shoe event horizon'*. A point will come when there are five recruitment agencies for every company that needs staff to do actual work and the economy will collapse in on itself in a horrific pileup of middlemen and consultants.
until then... hmm, they pay well.
*see Adams, Douglas. The Restaurant at the End of the Universe Chapter 10 for a full illustration of this principle.