Hi Carol,
First, I want to thank navzjoshi00 for a welcome community response. Second, I am amazed at the passage of time, and yes the new CA Support pages supersede the old reference to the CA Answer Bar... let me think of a better all-purpose link for people looking for the Portlet Reference Guide... and any other documentation for that matter... here is a good link, by CA PPM release:
http://www.ca.com/us/support/ca-support-online/support-by-product/ca-ppm.aspx?d=t&language=en&type=Document&typeofcontent=Bookshelves&q=ca%20clarity%20ppm&page=1
So, find a bookshelf in your language by release (13.2/13.3/14.1 and when 14.2 is available, it will appear here under this same link), and click P to find the Portlet Reference Guide along with all the other great documentation.
Kind Regards,
Damon
Senior Information Services Engineer
CA PPM Information Services