Here are some useful links:

USA Swimming –
http://www.usaswimming.org/

Southern California Swimming – Our regional association
http://www.socalswim.org/

SwimOutlet – popular web swim shop
http://www.swimoutlet.com/

La Jolla Rough Water Swim – Canceled for 2016 due to Bacteria Issues
http://www.ljrws.com/

Swim Swam – articles, events, clinics, etc
http://swimswam.com/

TruWest – Parkas
http://www.truwest.com/