I think nimbuzz is good but try www.tokbox.com maybe you'll like it or there are more like tango,line,msn,Google hangouts. Search them on Google.
fandango
web cameras are used for some websites and programs such as myspace and skype.
There are many websites that allow one to have a free live chat. Some of the websites that allow one to have a free live chat would include Skype and other websites like Justin TV.
There are lots of Skype tutorials available, assuming the support resources on Skype's own website are insufficient. Videos are available on YouTube and tutorials can be found on a number of teacher-training websites.
The official Skype website has a free version of Skype to download and install for both PC and Mac. A person can also download from websites like cNet and Softonic.
on some websites such as www.networkesl.com
There is Skype or if you have a Facebook there is Tinychat!
i tunes has the skype app
Wireless webcams that can be used to Skype with may be found online on websites such as Amazon. You can also find them in stores like Best Buy, Target, or Wal Mart.
ichat
For some Features of Skype you need Skype Credit!
If you are looking for free services, there are many websites like freeconfrence.com and confrenceplus.com, there are also services that you may have to sign up for like skype.
I believe it's like mobile credit, with Skype, you can call people on Skype for free, but calling mobiles via Skype costs Skype credits.