Yes. Hosted free sites are free sites that have been built and are hosted by sponsors. They are intended for link lists owners to list using their affilate codes, just as FHGs (free hosted galleries) are listed by TGP owners. Anyone with a hub could list both HFSs and FHGs also.
Here's a brief description of TGPs for you.
There are thumb TGPs and text link TGPs, both of which list galleries. On a thumb TGP the surfer clicks a on thumbnail to open an indivdual gallery. On a text link TGP the surfer clicks the gallery description to open the gallery. I run
Whoring Wives TGP which is a categorized text link TGP that also lists the newest galleries from all categories on the main page. A categorized TGP is very much like a link list with the exception that it lists only galleries, not free sites. You'll find many more single page TGPs than you will categorized TGPs. A single page text link TGP looks like this
YouDaPimp TGP It also has a small thumb table up top.
Hope that helps.