Hackr.io

Hackr.io lets you share and discover the best programming tutorials and courses online. Hackr.io lets developers submit, vote, and rank the best learning resources they find online. Hackr.io was #1 on Product Hunt, Hacker News and Reddit Programming. It still continues to be in the Product Hunt 50 Most Upvoted Products ever

Hackr.io is available on both web and an Android app.

 

ClipPod

ClipPod is Google Calendar with shared notes and attachments. Get all your meeting essentials at one place.