Abebooks - locate and order second-hand books.

AcqWeb's Directory of Book Reviews on the Web - links primarily to actively maintained sites done by experienced reviewers or subject experts.

Amazon UK

Antiquarian Books on the Internet - links to sources of rare books worldwide.

E-books

Legal Deposit in the British Library - advice on how to comply with legal deposit requirements.

London Review of Books online

Publishing News - news about the UK book trade.

Shetland Publishing Company

A Simple Book Repair Manual