Slack Overflow - A programmer's best friend, now in Slack.
Summize - Scan a photo of your textbook or news article and instantly get a summary.
GitCommands - An interactive reference tool for Git commands
Free Summarizer - Summarize *any* text online in just a few secs. *MAGIC*
GitHub + Slack Integration - Full visibility into your GitHub projects right inside Slack
Instaread - Read or hear key takeaways of any book in minutes