Canary Islands, Spain, is one of them. Good weather all year round, good internet connection in many places and plenty of flight connections to most important cities in Europe. Affordable prices for housing and food.
diigo.com -- I can share bookmarks to groups so my coworkers get access to them and best of all, with the chrome extension, every search I do on Google also searches my diigo library.
Founded a company and got selected for a startup accelerator in Amsterdam. Later, wife got a job in SF and we moved here.