Idea Hunt - Solve specific challenges for your favorite products
MicroAcquire - A free & anonymous startup acquisition marketplace
Idealist - Volunteer, work, and intern job search
Tiny Acquisitions - Tiny acquisitions is the only marketplace for internet business that are priced under $5,000.
OpenVC - 2200+ VC firms by thesis to find 'best fit' for your startup
BitsForDigits - An acquisition marketplace for profitable internet businesses. We make it anonymous & free for owners of $100K+ revenue startups to attract full & partial acquisition offers. Free for acquirers to join for a limited time. No commissions, ever.