Instant Messaging is one of the most popular way for communication over the web. Now, there are different protocols like ICQ, AIM, GTalk, Yahoo, and Facebook available on the web for instant messaging. IM Aggregators addresses the issue of having all of the programs open in one go.
The popular aggregators are:
Windows: There are quite a few aggregators available on the web for the windows platform. Digsby is considered as one of the most coveted aggregators. Digsby includes the most popular chat protocol like AIM, MSN, Yahoo, GTalk, Jabber, and Facebook. It can also add Twitter, LinkedIn, Facebook, and MySpace feeds in the client. The other key feature is inclusion of email accounts, like Hotmail, Gmail, Yahoo Mail, AOL/AIM Mail, IMAP, and POP. The tool is also user friendly. You have an icon in your taskbar for whatever network/IM/email account you configure, and you receive popup notifications for that account as per the user preference.
Mac:Adium is pretty cool with nice and simple interface. It covers most of the chat protocols like AIM, MSN, Yahoo, GTalk, ICQ, Jabber, MobileMe, Bonjour, MySpace IM, Facebook chat, Lotus Sametime, Novell Groupwise, QQ, and Gadu-Gadu. You can fully customize its look from admin menu.
Web: The idea of Web based IM is that you can communicate without downloading the software. Meebo provides a simple and useful feature for aggregator for web based IM. You can access AIM, MSN, GTalk, ICQ, Yahoo, Facebook Chat, MySpace, Jabber, and Flixter accounts without downloading. You can sign up to meebo and log on to those apps automatically.
iPhone: Nimbuzz is a leading aggregator for iphone users that supports protocols like Skype, Yahoo! IM, AIM, GTalk, MSN, ICQ, Jabber, Facebook, MySpace, StudiVZ, Gadu Gadu, and Hyves. The interface is simple and it has 5 tabs: Contacts, Chats, Communities, Messages, and Settings.