The Small Business Administration (SBA) has many opportunities and resources for W/MBE's. For instance, the SBA's Women Business Center is a network of over 100 community-based centers that provide business training, counseling, coaching, mentoring, and other assistance geared toward women, specifically those who are socially and economically disadvantaged. They are located in nearly every state and U.S. territory.
I think the best thing about this resource is that the SBA realizes that just having hours from 8-5 Monday-Friday doesn't work for working women or women who have other obligations during that time. To help with this, they provide convenient hours and locations, which include evenings and weekends. They are located within non-profit host organizations that offer more services than just those by the WBC. Diversity is very important to WBC's and to help contribute to it; they offer materials in different languages.
Many WBC's offer courses and counseling online and in satellite locations to make it more convenient. Furthermore, the WBC program has taken the lead in preparing women business owners to apply for the Women-Owned Small Business Federal Contract program which authorizes contracting officers to set aside certain federal contracts for eligible women-owned small businesses.