Media coverage and information about Hack Day London 

Geeks Bust Out Brollies as Rain Falls Indoors at Hack Day London

 BBC News: Hackers meet for coding festival
 Wired News: Geeks Bust Out Brollies as Rain Falls Indoors at Hack Day London
 One of the organisers at plasticbag.org: A Hack For Europe
 Reuters: "Hackers" meet for Yahoo, BBC open day in London
 Web developers gather for Hack Day
 Announcement on Digg
 SEO/SEM JOURNAL: Yahoo! Hack Day Here in London
 Blogosphere reactions from Yahoo Hack Blog
 ZD Net Asia: BBC, Yahoo get developers to hack Web apps
 BitTech: Hack Day London displeases God