Pleasanton Rotary
- Activities, calendar, history, and members list.
- http://www.pleasantonrotary.org/

Sierra Club Tri-Valley Group
- Activities, advocacy, and so on.
- http://sanfranciscobay.sierraclub.org/chapter/committeegroups/groups.asp#Trivalley

Epleasanton.com...Pleasanton history and folklore
- Pleasanton history, photos, updates, rumors, and general information.
- http://epleasanton.com

Caledonian Club, Scottish Highland Gathering and Games
- The Highland Gathering and Games features caber tossing, birds of prey, highland dancing, sheep dog trials, living history, bagpipe and drumming competitions, the gathering of the clans, and the massed bands: almost one thousand musicians playing together
- http://www.caledonian.org/

Amador Valley High School Class of 1978
- Class directory, message boards, photos, memorials, and links to other sites.
- http://www.amador78.org/

Tri-Valley Animal Rescue
- Rescues animals at risk of destruction from the East County Animal Shelter. Foster families host animals; adoptable animals are shown at the Pleasanton Farmer's Market in downtown Pleasanton.
- http://www.tvar.org/

Valley Humane Society
- Special events, news, and contact information.
- http://www.valleyhumanesociety.org/

Twin Valley District BSA
- Scouting calendar, troops, packs, merit badge counselors, and Boy Scouts news.
- http://www.sfbac.org/tv/

Representative Ellen O. Tauscher-California's Tenth Congressional District
- Ms. Tauscher is Pleasanton's representative in the Congress.
- http://www.house.gov/tauscher/

P.P.O.A. ONLINE
- Pleasanton Police Officers' Association
- http://www.pleasantonpoa.org/

Leadfinders Business Network
- Non-profit organization, is a group of sales oriented business men and women who trade business tips and leads.
- http://leadfinders.org

Livermore-Amador Genealogical Society Home Page
- Serves the cities of Livermore, Pleasanton, and Dublin and surrounding areas in the Livermore and Amador Valleys of southeastern Alameda county, in the beautiful San Francisco Bay Area of California. Free online access to the genealogy databases. "
- http://www.l-ags.org/

Rotary Club of Pleasanton North
- Club history, and details of events and activities.
- http://www.pnr-rotary.org/