The British Venture Capital Association (BVCA)
The BVCA guide to venture capital term sheets
Envestors Guide to Raising Finance of up to £2m
Grants for Research and Development
Small Firms Loan Guarantee Scheme
NESTA The National Endowment for Science Technology and the Arts

Following sites provide searchable data bases which can at least be accessed in part for free:

Esp@cenet
PatentLens Free full text searching also allows you to print out patent pdfs in one go

Business Planning

Top Technology Ltd has an excellent selection of useful links on business plans and much more

Perfecting your pitch: advice on getting your executive summary across, from Garage.coms' 'bootcamp for start-ups'
Building a strong business plan (USA) from Inc.com, "How to write a business plan that will get you in the door"
Nuts and Bolts of Business Plans (USA); presentation slides from Jan. 2003 course at the MIT Entrepreneurship Center from Joe Hadzima
business plans (USA); great insights from MIT's annual business plan competition judges
Lies to Make a VC Groan

Reading

Smarter Ventures: A Survivor's Guide to Venture Capital Through the New Cycle, by Katharine Campbell

The Art of the Start: The Time-Tested, Battle-Hardened Guide for Anyone Starting Anything, by Guy Kawasaki (of Garage Ventures)

Resources...

Download the Rainbow presentation on venture capital term sheets here