A very nice connectivity checker (global) to check your internet connection quality & performance.
http://www.speed.io/index_en.html
Work – Woking, UK – 10MB 1:1 Uncontended Leased Line – BT;
Home – Leatherhead, UK – 16MB 20:1 Contended ADSL – Nildram / Tiscali;
Other similar tools;