What types of things am I going to need to participate in this duolingo project? adobe flash drive (what's this??), microphone/camera (where do I go to see if my system has these items??) I'm becoming really confused about what's needed/how to install these new things. Thanks for the help.
Sounds like you need to install adobe flash player? http://get.adobe.com/flashplayer/
It is a software that allows you to view many kinds of multimedia and most websites require this nowadays.
A microphone isn't required but optional. And a camera definitely isn't required. Where did that message appear.. ?
Best of luck!