Search Engines
Google, Yahoo, Microsoft Live Search, Ask

IT & Telecommunications
Dell, BT, BT Internet, Pipex, Wikipedia

System Status Pages
Pipex System Status, BT Broadband System Status

Email
GMail, Windows Live Hotmail, BT Yahoo

Maps
Google Maps, Multimap

Broadband
O2 Broadband, BT Broadband, Virgin, SKY, O2