At present, buses operated by a variety of different agencies provide the bulk of transit service in Puget Sound. Operators include King County Metro, Snohomish County's Community Transit, Pierce County Transit, Sound Transit, and Kitsap Transit. Ridership has risen due to the 2008 gas price run-up, but revenues have dropped due to sales tax declines tied to the economic downturn. Key is finding steady funding sources from new taxes or fees that are less volatile than the sales tax.