Kevin: A list of the 5 best data visualisation projects of the year. Last.fm, BBC, Wordle. I liked the New York Museum of Modern Art's project exploring the world of online dating.

Kevin: Hat tip to Adam Tinworth. This is a wonderful visualisation of air traffic over the UK in a 24 hour period. Lovely stuff, and it really helps tell a story.

Kevin: "Is social media diplomatic window dressing or can the U.S. Twitter its way into the hearts and minds of other countries?" It's a lot more complicated than that, and many US foreign service staff will admit quietly that they've had a difficult time with public diplomacy during the Bush administration. But with Obama's social media efforts domestically, it will see if he tries to bring some social networking skills to US image rebuilding and repair.

Kevin: How to spot the real experts from those only expert at self-promotion.

Kevin: My friend and former colleague says it straight. "There is no reason to assume that print is the only or even the best vehicle for investigative journalism. The newspaper is a delivery vehicle for news. For a younger generation, that delivery vehicle is the internet."

Kevin: Alana Taylor reports on a panel about a MediaBistro panel talking about social media in general and about Twitter more specifically. NPR's Andy Carvin, BusinessWeek.com community editor Shirley Brady and Daily Beast columnist Rachel Sklar talk about why they use it. Also, Jay Rosen worries (but not too much) about finding a business model for news as we're in a platform shift, but he sees many possibilities with Twitter.

Kevin: Question and answers surrounding the copyfight over the now iconic Hope and Progress Barack Obama posters. The photographer is looking for some money but money that he plans to donate to charity. He's more interested in the recognition.

Kevin: A nice interactive graphic from the NYTimes showing Twiter keywords by state and over time