The Jerusalem Post carries a brief notice of the discovery of the Iron Age gate along with two photos.

Archeologists at Bar-Ilan University, headed by Professor Aren Maeir, have discovered the fortifications and entrance gate to the biblical city of Gath in the Philistines, which was once the home of the giant Goliath.
[…]
Professor Maeir said that the gate is among the largest ever found in Israel and provides substantial evidence that Gath was once one of the most influential cities in the region.

I think that everyone already agreed that Gath was one of the most influential cities in the region, but finding a gate doesn’t hurt.

Maeir links to several related stories on his blog.