The World Intellectual Property Organisation, WIPO, have a useful free online database, COLLECTION OF LAWS FOR ELECTRONIC ACCESS (CLEA), which provides an outline of intellectual property legislation and treaties from various jurisdictions and sometimes links to the full text of the laws.

IPWatchdog is another interesting IP site, maintained by US law professor Gene Quinn. Mainly focussed on US law. Check out Gene's Obscure Patent Museum for a bit of light relief.