Site Advisor anti-phishing toolbar plus free limited-functionality version... 

http://www.siteadvisor.com/

Advice from a UK banking industry group about phishing, money mules and Trojans... 

http://www.banksafeonline.org.uk/

Clearing house for information on phishing sites reported by the public plus an open API to integrate the data into anti-phishing applications... 

http://www.phishtank.com/

TrustWatch provides free anti-phishing toolbar and browser extensions that identify dubious sites in Google search results... 

http://www.trustwatch.com/

Phishing section of an informational website run by the US Federal Trade Commission. Advises consumers on how to spot, avoid and report phishing attacks. Free phishing awareness videos... 

http://onguardonline.gov/phishing.html

Cross-industry global group supporting those tackling the phishing menace. Provides advice on anti-phishing controls and information on current trends... 

http://www.antiphishing.org/