With the rise of Google, I'm no longer sure what the point is of most link pages.

You want general sites on Corinth? Google it.

Mosaic is from a Roman villa. The head is Dionysus.

I would suggest that you consider getting a good printed guide to the site. Corinth is covered in the Blue Guide to Greece, and there is a nice guide to Ancient Corinth prepared by Ekdotike Athenon, but I am not sure of its general availability or how recently it has been updated.

Either of these will have better technical info than most web sites, but fewer images.

If you must use the Interwebs, remember that Corinth is in the region of "Corinthia" and not in the region of "Achaia", though, sometimes, it seems to be associated with Achaia.

The region to the south of Corinth is the Argolid.