Here are a few links that we recommend:

Voter Registration
https://secure.slco.org/cl/voterreg - by mail in Salt Lake County

https://secure.utah.gov/voterreg/index.html?formtype=fb
Online voter registration (until October 4, 2010)

Vote By Mail

http://www.clerk.slco.org/elections/PDFs/PVBM_App-01_10.pdf 

Salt Lake County Clerk  

http://www.clerk.slco.org/index.html

Utah Legislature
http://www.le.utah.gov

Millcreek Township
http://www.millcreektownship.org

Holladay City
http://www.cityofholladay.com

Utah House Democrats
http://www.utahhousedemocrats.org

State Democratic Party
http://www.utdemocrats.org/

County Democratic Party
http://www.slcountydems.com/

ActBlue
http://www.actblue.com

Utah Moms for Clean Air
http://blog.utahmomsforcleanair.org/

BreatheUtah

http://www.breatheutah.org/