Houston
Here's a website which has plenty of info for people looking to find the extreme Metal scene in Texas: Extreme Texas Metal: http://www.extremetexasmetal.com. You'll also find info about upcoming gigs, bands, radio shows and so on there.
BFE Club (Formally FBI and Playmakers)offers live gigs and events as well as a good variety of Rock and Metal music.
Venue with live gigs almost every day, also some Metal and Rock bands are playing there.
A live venue where they have quite a lot of Rock and Metal gigs. You'll find the schedule on their website.
This venue has long been known as a room for live music performances of all styles:†Country, Pop, Rock, Blues, Metal, Rockabilly and Alternative / Indie acts have performed here during the various incarnations of the club over the years.† As they have thi ...
Long estalblished club and venue for bands, ranging from Alternative, Rock and Metal to Punk and Ska. Also some other events are taking place, check their website for detailed program.
Forgetta'bout it has two locations: This first one is a Sports and Entertainment club where they also have Rock and Metal bands playing. The second one calls itself West Houston's Premier Rock Club and has also some Rock / Metal live gigs and stuff.For bo ...
A rather new venue in downtown Houston which hosts concerts, parties and special events Many Alternative, Hardcore and Metal bands are playing here, check their website for dates & details.
A popular Gothic nightclub that also has Metal gigs, as well as Punk, Industrial and so on. Check their website for upcoming events.
Record store with underground Metal section.
Rather new concert venue and night club with two stages. Check out their website for the event calendar - its much Metal and Alternative here, also some bigger touring acts.

