Just a few links to start with:

Firstly the Manchester 2002 site, its a web encyclopaedia for Manchester

We've got a pub guide here, which is pretty good and also includes some pub crawls

And a guide to continental beers in Manchester

Here's a site from the noble Lord Disbury on Didsbury (where else)

Manchester Online's Pub guide

My own site - very out of date and tacky

The homepage for an alter-ego of mine, The Master Bluesman well worth a look!

And now the pubs:

The Bull's Head, with plays Slug & Lettuce in the first round