The Banana Leaf - Located on the same street as the Temple Bar and Angkor What?, this very open air bar is a great place to set outside and watch the night unfold.
Brodies - One of the more laid back places on Pub Street. Glenn is a heck of nice guy and has some of the nicest staff in town. The lovely lady behind the bar that can make one hell of a cocktail is named "Srey Touch". Her teacher and mentor until the 1st of September is Mr. Kim, a master bartender by anybody's definition. Two other helpers are Nareth (girl) and Narith (boy).
Dead Fish - One of my favorite places with a rather eclectic crowd. Live music in the evenings usually performed by a blind piano player who has been in town playing for years. Very open environment with hand lifts which take food to customers on the second level. Free Internet with 3 computers if you stop in an buy a drink or have some food. With Internet cafe's all charging $1 an hour, this is a nice advantage. Also a great place to meet people.
Ivy Bar - Good food and very open as it sets on the street corner. Great place to watch the scenes around you unfold. There is a single pool table in the back with one of the most warped tables I have ever played on. You can get a cool draft here during the day for a $1 with pretty decent lunch specials.
Laundry Bar - One of the up and coming clubs in Siem Reap which is located around the corner from the Angkor What?. Things seem to start to happen past midnight with a great selection of music and drinks. Frequented by local ex-pats, Siem Reap bartenders, and some of the nicer taxi-girls in town, this is a great place to chill from a long day in the temples!
Martini is a place single men usually end up at. Martini's is not related to the same named bar in Phnom Penh nor is it anywhere as nice and enjoyable as the one in Phnom Penh. I have been there numerous times and unless I am missing something, I really can't find a reason to be there although others have said they had a good time. Guess it is a hit and miss proposition.
Moloppor Cafe - A very interesting little cafe a couple of bridges up from old town heading to Angkor Wat. A bit hard to describe as it seems it is a cross between a Japanese and western coffee house. They serve "humburgers" (not a typo on my part) and a form of espresso. Lots of paperbacks in Japanese and John Denver on the CDs. Upstairs there is a sauna and bath house which allows women in from 6-8 PM and men from 8-10Pm for $2.00 each. I like the Japanese omelet with teriyaki sauce.