US House of Representatives:

https://writerep.house.gov/writerep/welcome.shtml Select your state, enter your zip, then click the Contact your Representative button.

US Senate:

http://www.senate.gov/general/contact_information/senators_cfm.cfm Select your state, then your Senator.

Kansas House of Representatives:

http://www.kslegislature.org/legsrv-legisportal/redistricting.do

Kansas Senate:

http://www.kslegislature.org/legsrv-senate/searchSenate.do

Oklahoma House of Representatives:

http://www.okhouse.gov/Members/FindRep.aspx

Oilahoma Senate:

http://www.oksenate.gov/senators.htm

Texas House of Representatives:

http://www.fyi.legis.state.tx.us/ 

Texas Senate:

http://www.fyi.legis.state.tx.us/

Or, go here to find your Federal and State Legislators:

http://www.capitolconnect.com/oklahoma/ Even though this is a service of the Oklahoma Senate, it works for everyone in any state.