Siné is a big Irish Pub located right in the heart of Richmond's Shockoe Slip area. They have Irish beer, live music, and lots of people. They also have a good menu (better than the menu at most Irish Pubs in Ireland) with pub food, sandwiches, and a variety of appetizers. Definitely a good spot in Richmond.
Another great feature, weather permitting, is the huge outdoor patio in the back of the building.