Wikipedia
DontStayIn, commonly abbreviated to DSI, is a social networking site based around clubbing. Primarily covering the UK it lists nearly 185,000 events and has over 430,000 verified members. Members are encouraged to upload picture galleries to the site for events they've attended, add events and venues and otherwise contribute. 'Spotters' are DSI members who review and photograph events and promote DSI.
The site was also ranked continuously from April 2006 to December 2008 in the top 3 websites in the UK by Hitwise for their "Entertainment - Nightlife" category. ( Hitwise awards - Q2/2006 Q3/2006 Q4/2006 Q1/2007 Q2/2007 Q3/2007 Q4/2007 Q1/2008 Q2/2008 Q3/2008 Q4/2008)
The format of the site allows any user to add event listings, post comments and upload photos from anywhere in the world. DSI members are known for their loyalty to and promotion of the site. Many users have also commented favourably about the site and its impact on their lives when it is mentioned by reviewers (see comments here for an example).
DSI users (often shortened on the site to "DSIers"), have used DontStayIn to set up events and user-groups to promote the meeting up of DSIers in real life.
In November 2006 DSI was reportedly used to organise what has been described as the biggest flash mob ever in Paddington Station, London, UK.
In 2005, DSI was featured in a documentary made by Juniper TV as part of Channel 4's "Trouble Online" series that profiled new media enterprises that have been set up by young entrepreneurs.
On 14 April 2009, DontStayIn Ltd was acquired for an undisclosed sum by Development Hell Ltd, the publishers of The Word and Mixmag.
In December 2012 DontStayIn was taken over by Love Socio Ltd, a subsidiary company of Web Giants Ltd.