IdeasAI - OpenAI-powered startup idea generator
UpEffect - Crowdfunding for social good products
Ideas Grab - A list of +3400 ideas that you can get for your projects.
Creddon - Tweet for a cause and a sponsor will donate $1 to charity
Startup Stash - A curated directory of 400 resources & tools for startups
eSolidar - Charity shops and online auctions to support great causes