UK
UKIPO – Decisions issued in Patent Hearings
UKIPO – Online File Inspection (Patents)
Patent Court Decisions (Free Bailii Database – also has selected Court of Appeal and House of Lords decisions)
Patents Court Guide (England & Wales – PDF)
Companies House – WebCheck (Check the name(s) and status of registered UK companies)
Duedil (Free site that is better than Companies House for commercial information)
EP
EPO Online File Inspection (and other services)
EPO Guidelines for Examination
European qualifying examination (EQE) compendium
Member states of the European Patent Organisation
EPO – Find a professional representative
US
US – PAIR (Online File Access)
Manual of Patent Examining Procedure (MPEP)
United States Postal Service – Abbreviations (If you need to match a state name to an abbreviation)
JP
Industrial Property Digital Library Home Page
WIPO (PCT)
PCT Time Limit Calculator (An extremely useful cross-check – enter relevant dates to see results)
Directory of Intellectual Property Offices
Searching
Free
Subscription Required
Training
CIPA (UK) – http://www.cipa.org.uk/pages/home
EPI (EP) – http://www.patentepi.com/
UK Foundation level exams – Bournemouth University PG Certificate in Intellectual Property (after 1 year in profession) – http://courses.bournemouth.ac.uk/courses/postgraduate-degree/intellectual-property/none/438/
European Pre-Examination (foundation level, after 2 years in profession) – http://www.eqe-online.org/pre-exam/
[Thanks to Leigh Anne Thomas for the above]
Useful Websites
Calculator: Add to or subtract from a date (to double check those essential dates)
IP Chimp 