When I first saw the Meebo Me widget, I thought it was one of the coolest things I’d ever seen on the Web. I immediately went to chat with some folks on our team and the response was that they were already way ahead of me. After a bunch of hard work, I’m glad to say that you can now embed the world’s most popular IM client into any Web page [including your blog or favorite social networking site] and let anyone who’s visiting that page chat with you while you’re online.
More details can be found in Casey’s post on the Windows Live Messenger team’s blog entitled Who wants IMs from the web? I do! I do! where she writes
The Windows Live™ Messenger IM Control lets people on the Web reach you in Messenger by showing your Messenger status on your web site, blog, or social networking profile. The Windows Live™ Messenger IM Control runs in the browser and lets site visitors message you without installing Messenger first. The IM Control is supported in IE6, IE7, and Firefox 2.0 on Windows and Firefox 2.0 on Mac OS. The IM Control is supported in 32 languages.
This is a nice addition to the IM button functionality announced in Ali's post. An important difference between the two is that the new Windows Live™ Messenger IM Control allows people to send you IMs without installing Windows Live™ Messenger, and the IM button requires that they have it installed and are logged in.
I’ve already thrown it up on my Windows Live Space at http://carnage4life.spaces.live.com so anyone who wants to chat with me in real time can holla at me without having to install any bits. I expect it won’t be long before someone figures out how to port it to the Facebook platform which is something I’d love to see. I’d do it myself but I have RSS Bandit feature planning to work on in my free time. 
To prevent IM spam (aka SPIM), there is a Human Interactive Proof (HIP) challenge before a conversation can be initiated from the Web. For users concerned about privacy and wondering if anyone can just copy & paste some HTML, change some values and then spam you from the Web…rest assured this has been considered. In order for your online presence to be detected or IM conversations begun from the Web, you first have to turn on this feature. Safe defaults and making sure our users are always in control of their Web experience is key.
So what are you waiting for? Come over and say hello.
Now playing: Jodeci - Come & Talk To Me