Kevin: An in-depth look at the history of Slide, a social development company recently acquired by Google. The post is an excellent look at the history of Slide and what it might mean. "We would not be surprised to see Google Me (or whatever it is called) making self-expression a priority, complete with ways for users to do things like customize and auto-play slideshows on their profiles. And we also expect to see Levchin and his team to integrate the most social, self-expression focused parts of Google, like YouTube, Picasa (sort of), Blogger, Orkut and whatever else it can."

Kevin: Visual timelines for investigation. This is alpha software so your mileage may very. However, it looks like a very good tool for collecting information for complex events. 

Kevin: Chris O'Brien thinks that Silicon Valley is getting irrationally exuberant about location based check-in services such as FourSquare. It's not a question of whether it will happen but whether it is the right time. At the moment, it still is an emerging behaviour, according to analysts.

Kevin: Peter Kirwan takes a look at the two-track recovery in advertising in the UK media market. Broadcasting and national newspapers are roaring back strongly in 2010, but B2B publishers and regional publishers are struggling to gain traction in what still is a difficult market.

Kevin: A good summary of the discussion about paywalls between John Witherow, editor of The Sunday Times (of London), and Guardian Editor Alan Rusbridger. Witherow said that they needed to look for another model instead of simply laying off more journalists, and Rusbridger said that although opposed to paywalls, if the experiment worked, The Guardian would have to consider it.