I buy a Blackberry and BBM dies. Does Bryce Lawrence sell anything?" This was just one of millions of tweets about Blackberry that has had it trending in the top ten worldwide topics on the social networking site for most of the week. The first service cut was experienced on Monday morning when users of the Blackberry smartphone were unable to browse the web, use instant Blackberry Messenger (BBM) or access other internet services such as emails, Twitter and Facebook. After the initial blackout took place at around 11.30am on Monday, the Blackberry manufacturing company, Research in Motion (RIM), managed to restore Blackberry services later that night. But, the joy was short lived as most users experienced a second system failure around midday the following day. The problem is said to have originated in Slough, in the United Kingdom, where the RIM data centre is situated. The core switch failure in Slough caused Blackberry Internet Services (BIS) glitches in Europe, the Middle East, Africa and Latin America.