Online Vehicle Checks

Three very useful sites for checking out information:

Check the Motor Insurance Database for current insurance:
http://www.askmid.com

The DVLA lookup to check that your road tax/SORN is still in date:
http://www.taxdisc.direct.gov.uk/EvlPortalApp/ (click vehicle enquiry on left hand side)

MOT Checks online:
http://www.motinfo.gov.uk/internet/servlet/ECSIDDispatcher

Thanks to mr_dink and Sanchez