www.nuria.org.uk
Anyone using this? It looks quite neat. It measures download, upload and ping, compares them against other Nuria users on the same ISP/tier, and comparable tiers on other ISPs. It also does a daily speedtest and allows you to graph your scores over the last 14 days. You get some BB related news links in the side panel, but they're fairly innocuous.
There's no ads. Only performance data is collected. Apparently large amounts of regularly collected performance data is interesting enough to generate revenue.