There is a plethora of law sites, case studies, analyses of statutes, even complete legal search engines. Some areas of law, on the other hand, enjoy more visibility than others. Contaminated land and environmental law have many sites devoted entirely to these issues, while housing law and medical negligence are less well served. This may be due to the necessarily international nature of environmental issues, coupled with the linkup between scientific analysis and law, which makes this an ideal subject for the Web. Some of these are simple lists of links, some are search engines, but they're all useful, in particular Delia Venables' Legal Resources Pages.
Some services are also subscription-only.
Government Central Office of Information Where to find out what's new in government legislation. Statutory Instruments Full text of all government Acts, amendments to Acts, etc. The Lawyer Very comprehensive, with an impressive searchable feature archive. Medical negligence Medical Protection Society Aimed at the medical and dental professions, with an extensive archive of condensed case reports. The primary home site for Woolf Inquiry information, run by the Law Technology Centre.