Startup Stash - A curated directory of 400 resources & tools for startups
UpEffect - Crowdfunding for social good products
Makerbook - A directory of the best free resources for creatives
Creddon - Tweet for a cause and a sponsor will donate $1 to charity
Tools for Makers - A hand-curated directory of tools for indie makers.
Public Design Vault - 500+ design tools for public good, all in one place