Nibbler - Free tool for testing how good your website is, and what you can do to improve it. Check accessibility, SEO, social media, compliance and more.
The Tweet Hereafter - The last tweets of the deceased
Colorific - Colorific Hair Color Salons give you amazing color at an affordable price.
Your Life In Weeks - A spreadsheet of your life inspired by Wait But Why
HTML Validator - HTML Validator is a Mozilla extension that adds HTML validation inside Firefox and Mozilla.
Startup Graveyard - History shouldn't have to repeat itself