Integrated Web Chat Research

Closed - This job posting has been filled and work has been completed.
Hourly Job
As Needed
Less than 1 week

Details

I am looking for someone to research tools that allow users to chat on a website

1. what are the top opensource webchats used today?
-what are their top features
-do they allow a user to indicate availability?
-which tools allow chat/video/call?
-sites which use web chat the best
-what is the level of effort to integrate (estimated development time)

2.  What are the features of skype's api?
-top features
-does skype's API allow integrated web chat?
-does skype enable presence indicators?
-top examples of websites that integrate skype chat and call well

Details:
-estimate 5 hours of work
-Strong English is a must
-built in powerpoint

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Skills: research, video, english