"Injecting Twitter into that conversation fundamentally changed the rules of engagement. It added a second layer of discussion and brought a wider audience into what would have been a private exchange. And it gave the event an afterlife on the Web. Yes, it was built entirely out of 140-character messages, but the sum total of those tweets added up to something truly substantive, like a suspension bridge made of pebbles."

Makes your Tweets less than 140 characters

Anyone who works with fast moving technology knows that there is always a new shiny tool that gets all the attention. It tends to change every few months and anytime you start to use a new tool, you do secretly wonder if it will be around all that long.

WhoShouldiFollow looks at who your Twitter friends follow to suggest new people. By adjusting the sliders on the results page, you can give greater preference in the ranking to less popular Twitter users, or those who are near you. The algorithm is an item-to-item collaborative filter, somewhat similar to how Amazon makes recommendations.