U2W3 is a URL redirection service. It allows you to enter a URL (such as a website address) and generate a U2W3 URL, that is something that redirects visitors back to your original URL.
There are a few reasons why you might want to:
1. You want to put a link into an Email, Tweet or on your Blog but it's a really long URL and sometimes they look odd or go a bit funny, especially in email messages. So, you can paste that long URL into U2W3 and generate a short URL that people can click on or type into their web browser to get redirected to your original long URL.
For example:
This is an article on the BBC News website: http://news.bbc.co.uk/1/hi/uk_politics/8087555.stm
And this is the same as a U2W3 URL: http://u2w3.com/-1234
(OK, in this example the BBC URL isn't really long or troublesome, but you get the point)
2. If you sign-up for an account with U2W3 you can view stats on any U2W3 URL's you create. This means you can track the number of hits (redirects) that U2W3 receives. You can also check out where people click the URL from (say you have it on your blog and company site) and the top web browsers that people are using to visit your U2W3 URL.
Yes. U2W3 is currently in beta and it's free to sign-up and use. When it comes out of beta we may charge or we may not (probably not), but if you sign-up now when it's in beta you can certainly keep your free account going for as long as the service is available.