Launching Next has discovered 2 twitter buffer startups.
Buffer - A Smarter Way to Share on Social Media
Buffer makes it super easy to share any page you're reading. Keep your Buffer topped up and we automagically share posts for you through the day.
Math.com - World of Math Online
Free math lessons and math homework help from basic math to algebra, geometry and beyond. Students, teachers, parents, and everyone can find solutions to their math problems instantly.