names of the waterways under and in London

On Medievalists.net I just followed a link to a fascinating article about how many of the rivers and creeks of London got their names. It reminded me how eagerly I'm awaiting the next novel in Ben Aaronovitch's fantasy series.

Londonist.com reviews the first novel as lacking believability, but gives it the thumbs-up as a cracking good read in terms of action and interest.

I didn't have any problems with believability, but I'm a frequent reader of urban fantasy, so perhaps I was more ready to sink myself into the plot.