Links for 2009-03-28

SelfControl is an OS X application which blocks access to incoming and/or outgoing mail servers and websites for a predetermined period of time.

Alkaline tests your website designs across 17 different Windows browsers right from your Mac desktop in seconds. No need for virtual machines, Windows licenses, or any messing around with Windows Update.

Mutuality is a free simple service allows you to bulk unfollow people not following you.

Now that I have told you how to find people and follow them, I want to tell you how (and why) to unfollow them.

With groups and discussions, TweetWorks helps you get the most out of Twitter.

Tweetizen is a simple web-based tool designed to help you filter the daily influx of tweets, and easily find the ones that are relevant to you.

Cursebird is a real-time feed of people swearing on Twitter.

The 960 Grid System is an effort to streamline web development workflow by providing commonly used dimensions, based on a width of 960 pixels. There are two variants: 12 and 16 columns, which can be used separately or in tandem. Read more.

You can move your titles, descriptions and keywords from All In One SEO Pack to Thesis in a single step.

Learn how to quickly and easily feature your top articles using the Thesis feature box.