These are my links for October 2nd through October 3rd:

• London Calling » Top 5 Foursquare tips for business – If you are looking for ways to increase footfall, drive customer loyalty and attract those hard to find early adopters into your store what can you do?
• Twitter ‘can be used to predict flu outbreaks’ – A computer science expert at Southeastern Louisiana University has revealed that keeping track of disease trends such as influenza outbreaks has the potential to be far quicker and less costly by monitoring a social network program such as Twitter than following the traditional methods of disease surveillance.
• Forget Revenue. Relevance Is The New Currency. – How do you stay relevant with 500 million or 1 billion members? How do you make sure you don’t turn into the next ICQ, Orkut or Myspace? Finding the answer to relevance is a lot harder than answering the ‘money’ question.
• Facebook: the gateway onto the internet? – Telegraph – Over the last few months Facebook has launched several new products and seems to be trying to build a web within the web. But will it work and more importantly should businesses believe the hype?
• Are guidebooks facing extinction? | Travel | The Observer – Are guidebooks facing extinction?<br />
  Twitter tips, up-to-the minute websites and customised apps bursting with locals' advice are all changing the way we travel. But does it mean the end of the guidebooks?
• Tackling insomnia through Twitter – Insomniacs will soon be getting help to overcome sleeplessness via social networks.
• LinkedIn targeted by malware attack – The latest attack of LinkedIn has been reported as a Zeus data theft program which has been spamming users and which has the capability of infecting computers and mobile devices in order to steal personal information. Aggressive malware campaigns of this kind are usually on the lookout for online banking details, so it is only natural that alarms are raised.
• Twitter and Facebook cannot change the real world, says Malcolm Gladwell – The bestselling author of The Tipping Point has enraged social network users by dismissing their impact on real issues
• 5 Tools for Online Journalism, Exploration and Visualization – ReadWriteCloud – The tools represent a renaissance in how we make sense of our information culture. They provide context and meaning to the often baffling world of big data.
• How to be a data journalist | News | guardian.co.uk – Data journalism trainer and writer Paul Bradshaw explains how to get started in data journalism, from getting to the data to visualising it