Every week I come across a lot of links. (Hopefully) every Friday I’ll post the best for you. Enjoy!

• RefactorCop - Rails Rumble project that finds OSS Ruby projects with style violations via RuboCop ripe for fixin'! Beautiful design.
• App Review Tuesdays - Good idea! I’m going to try and do this more. I’ve downloaded (and purchased) hundreds of apps, but can’t recall reviewing a single one.
• Visitors - Slick menubar app for Mac OS X that shows how many folks are on your site in real time via Google Analytics
• Dynamic Range Database - Loudness data for thousands of albums
• React Hacker News - Hacker News, updated live in real time via the Firebase API announced a few weeks ago
• Using nginx, confd, and docker for zero-downtime web updates - confd generates templates based on etcd data
• Music Theory for Musicians and Normal People
• UCSC Genome Browser: Downloads - A cat is 615MB, human 800MB, ebola virus 4.7KB
• Freebbble: Free design resources from Dribbble
• Alex Buono | HOW WE DID IT — SNL Title Sequence - Lightpainting, aerial shots, and freelensing (“hold an unattached lens up to the camera’s lens port and manually focus the shot by moving the lens closer or further from the camera”) techniques for this season’s 40th anniversary SNL titles
• Ivy - Import playlists into Spotify