Not so new service : MeeboMe allows communicaton from your IM Client ( MSN, Yahoo, ICQ, AOL ) through web interface allowing integration of contact lists and accounts under myMeebo account. Like Trilian does for desktop users Meebo does for web users.
There is one neat thing that Meebo does and can do : myMeebo interface for users on your website.
When a user connects to your web page ( opens it in a browser ) in your Meebo console that user is registered as an active on-line contact. You can chat like he has an IM Client. Benefint of this feature is that you can communicate with visitors from your site real-time on-line.
To see it in action, read-on...
When a user clicks a submit button in a form, their browser makes a request back to the web server for the specified URL. On the web server, the user's input is processed and some action is taken based on the input. A database record might be added, an email might be sent, and so on. One potential issue that can arise is if a user submits a form, but there is a delay in getting back a response from the server. A user may think that the button click didn't "take", so they click it again. This can lead to two form submissions, resulting in two database records being added, two emails being sent, or whatever.