The Global Warming Policy Foundation (google them if you want, they get no links from me) have a web banner showing annual average global temps from the Met Office's HADCRUT4 dataset since 2001.

Given that Nigel Lawson's been putting himself about a bit (see andtheresphysics for an overview) I thought I'd stick their banner in its proper place, along with the full dataset - and made it into an animated gif. How 90s. The gif link is also here. Anyone spot any errors, let me know.