There are some outstanding resources on the web for investor sentiment indicators and interpretation, and here are some of the favorites of our staff and members:
AAII Investor Sentiment Survey
Commitments of Traders reports
Consensus Bullish Sentiment Index
The Hulbert Sentiment Indices
National Association of Active Investment Managers
Feel free to contact us at firstname.lastname@example.org or go to the contact page if you have any other sentiment site recommendations.