I've read the FAQs and searched the help center. 

My URL is: www.portraitquilts.com

 

I haven't made any changes to my site in over a year, so I haven't done anything that should get me penalized.

 

I am not even listed under the term "portrait quilts".  I used to be #1 on this.

 

Does anyone have any ideas?  Could there be something on my website that is not allowing the Googlebot? 

And if you've got links back to you on those sites too, I'd reach out the to owners and ask them to nofollow those links.

If they're for visitors, nobody will mind.