Research, white papers and databases in the field of angel investing organizations are relatively new, however each of the documents below provide valuable data and analysis of the "industry." Here are research papers written on angel investing and angel groups in the last few years.

	Angel Finance: The Other Venture Capital Andrew Wong, University of Chicago, January 2002
	Angel Investing: Changing Strategies During Volatile Times Jeffrey E. Sohl and William Wetzel, Center for Venture Research, University of New Hampshire, 2002
	Angels on Angels: Financing Technology-Based Ventures – A Historical Perspective John Freear, Jeffrey E. Sohl and William Wetzel, Accepted August 2002 in Venture Capital (Vol. 4, No. 4, 275-287)
	InvestorPulse UK Angel Attitude Survey: A qualitative survey in UK Business Angel attitudes, preferences and views in 2002 and 2003 Paul Gardner, c2Ventures, Ltd (www.c2ventures.com), 2003
	The Private Equity Market in the USA: Lessons from Volatility Jeffrey E. Sohl, Center for Venture Research, University of New Hampshire, October 2002
	Success Factors in Technology-Based Entrepreneurship John T. Preston, MIT Entrepreneurship Center, Updated August 2001
	The US Angel and Venture Capital Market: Recent Trends and Developments Jeffrey E. Sohl, Center for Venture Research, Published in Journal of Private Equity, Vol. 6, No. 2, 2003, pgs 7-17.
	Venture Support Systems Project: Angel Investors Lucinda Linde (Marlin Capital) and Alok Prasad (Pittiglio, Rabin, Todd & McGrath) under the direction of Kenneth P. Morse and Matthew Utterback of the MIT Sloan School and Howard Stevenson and Michael Roberts of the Harvard Business School, February, 2000.

For access to additional research, we recommend these Web sites:
Center for Venture Research, University of New Hampshire

Frontiers for Entrepreneurship Research 2002
Babson-Kauffman Entrepreneurship Research Conference.
Got to Section XII, “Informal Investors/ Angels

Angel Equity, a quarterly survey and study of business angel activity in the US