Here are some links that you may find useful:

Lambretta Club of Great Britain: http://www.ilambretta.com

MB Developments:www.lambrettaspares.com

Midlands Scooter Alliance:www.midlandscooters.com

Motorcycle Safety Foundation (although some of the content is USA specific, there are some useful hints too):
http://msf-usa.org/downloads/Scooter_tips-screen.pdf

North Shropshire Scooter Club: www.northshropshirescooterclub.co.uk

North Wales & Borders Alliance: nwaba.forumotion.co.uk

Scooter News: www.scooternews.co.uk/ScooterNews/News.html

SCOOT-R-SHOP: joe_spink@hotmail.com   www.scoot-r-shop.co.uk

SORN and insurance:http://www.v8register.net/subpages/sorn12.htm

Shropshire Lads and Lasses: www.slnlsc.co.uk

Rayspeed:www.afrayspeed.co.uk

Readspeed: www.readspeedscooters.webeden.co.uk

Rimini Lambretta Centre:http://www.riminilambrettacentre.com

Scootering Magazine: www.scootering.com

VFM:www.vfmscoot.co.uk

Fancy listening to some classic 'Mod' sounds? Try this for size: http://www.boogalooradio.com
Thanks to Stuart Raine for this one!