I suspect that many of the readers of APS have looked at a lot of shemale porn. I also suspect that many of the readers of this blog have occasionally seen a picture of some t-gurl and had no idea who they are looking at and what to know the name of the model.
Once you know her name it is easier to search for more of their work online. Perhaps find out what videos she is in, what other photosets are available and if she has her own website or blog.
Thankfully, there are a couple of resources available for us to find out more about those lovely, unknown girls. Take a look at the TS Identification Database and the Shemale Model Index.
These sites list a lot of girls - thousands of them in fact. They list the girls alphabetically with thumbnails. Shemale Model Index also provides an advanced search feature that lets you search for gurls by name, country, ethnicity, eye color, sites that they appear in, the type of action, etc.