The Coleman Entrepreneurship Center is an entrepreneurship support organization at DePaul University's Kellstadt Graduate School of Business. The Center offers specialized consulting services, educational programs, and helpful resources to entrepreneurs at different stages of the entrepreneurial quest.
http://cec.depaul.edu/

Midwest Entrepreneurs' Forum promotes and strengthens the process of starting and growing companies, which have a strong technology orientation by providing services which educate and inform entrepreneurs. More information can be found at:
http://midwestentrepreneursforum.org/ 

The SME Toolkit offers software, business forms, training, and more to help women and minority-owned businesses grow and succeed. It’s free and easy to use. Just search or browse the categories for the information you need.
http://us.smetoolkit.org/us/en/index

The Chicagoland Entrepreneurial Center (CEC) is a nonprofit affiliate of the Chicagoland Chamber of Commerce that seeks to make a perceptible and lasting economic impact on the Chicagoland region by helping entrepreneurs and high-growth businesses build viable, sustainable, and profitable enterprises. The CEC works with entrepreneurs to create and sustain opportunities for business success, job growth, and profitability.
http://www.chicagolandec.org

The Illinois Technology Development Alliance (ITDA) is a private, not-for-profit, professional services firm that helps high technology companies define and build their businesses.
http://www.illinoistechnology.com/about/

VC Confidential is a blog dedicated to de-mystifying the world of venture capital.
http://www.vcconfidential.com/

This paper, entitled Overcoming the Growth Plateau: Emphasizing the Right Entrepreneurial Practices to Achieve Sustained Growth, was put out by the University of Chicago Graduate School of Business.
http://www.chicagogsb.edu/entrepreneurship/docs/aec_2006_11-30_overcoming_growth_plateau_final_study.pdf

The Miller Urban Entrepreneurs Series offers advice from successful entrepreneurs and information and direction on everything from developing a business plan to marketing tips and current business trends.
http://www.millerurbanentrepreneurs.com/success.asp?content=success

The Burton D. Morgan Center for Entrepreneurship at Perdue University holds an annual life sciences business plan competition. The Life Sciences Business Plan Competition seeks commercially viable business plan entries for innovative products and services in the life sciences industry, such as medical equipment and devices, pharmaceuticals and drugs, research services, and software. http://www.purdue.edu/dp/Entrepreneurship/programs/lifesciences/index.php