Prismatic takes on Twitter in the race to build a better serendipity engine

News-filtering service Prismatic has just launched a new “friend following” feature. Although this may look like a social-networking copycat move, founder Brad Cross says it is all about increasing the amount of data the service has about its users so that it can make relevant recommendations.

Why the UK’s porn filter plans are just an illusion

The British government is considering once again whether to apply mandatory filters to block all adult content on the internet. But what’s the point of campaigning for a technological solution when the technology itself doesn’t work properly?

How mobile networks are policing the web — badly

Mounting evidence suggests Europe’s mobile operators are becoming increasingly censorious, thanks to haphazard adult content filters that are applied to millions of users. The result? De facto, unregulated censorship that screens out thousands of legitimate websites, including GigaOM.

Prismatic wants to be the newspaper for a digital age

Surrounded by an overwhelming amount of digital content, many people are looking for something that can fill the role of a digital newspaper — filtering and highlighting interesting content. Among the many startups trying to solve this problem is a San Francisco outfit called Prismatic.

Can Bottlenose help prevent the social sharepocalypse?

Bottlenose, a new web-based service that launched Tuesday and was co-founded by serial entrepreneur Nova Spivack, joins a growing number of apps and services aimed at filtering the noise out of our social-media streams. But does Bottlenose have what it takes to do the job?

Marshall Kirkpatrick stops writing about startups, starts one instead

Blogger Marshall Kirkpatrick is leaving his job at Read/Write Web to start a company called Plexus Engine, which he says will offer data-filtering tools he has used as a tech journalist. Kirkpatrick joins a growing group of bloggers who have left to join the startup world.

Everyone wants to be a news filter now

Facebook has launched a new “personal newspaper”-style news feed, while both Digg and Klout are using their internal ranking systems to try and create topic pages. But will any of these solve the growing problem of information overload, or will they just add to the noise?