While familit do have a browser / content manager add-in, this is a paid product (if you are looking for free family browser, check out tools4revit).  However, the family content itself at familit is free:
At the moment familit.com offers 18.000 free families in English, German and French language.


You don’t even need to register.  Just go to the following link and start downloading:
familit – Revit Family Library

Nice post by Ben Malone over at BIMopedia.  He shows you how to install, activate, and use the free Tools4Revit family browser.  I like the fact that I can add my single local network-located Families folder and it will go ahead and index the families for me…

My PC has been busy upgrading and indexing over 5000 files to add to the Browser, so it will be interesting to see how well it performs.  I have had to do some minor babysitting to clear some warnings / dialogs and let the process continue…

Read more at:
BIMopedia Online – Benjamin Malone