A number of famous people in Silicon Valley re-entrepreneurship YouTube founder in the column

Sina Science and technology news Beijing time December 16 night, the founder of Yelp, YouTube and 23andMe, and many other well-known technology companies recently left business.　　In Silicon Valley, it is not uncommon for famous people to start again. Yelp co-founder Simmons (Russel Simmons) resigned from Yelp before 1.5. He is currently working on an educational project Learnirvana. Learnirvana has just launched its first product lentil. This is an online education project, the interface is very simple, can help users read Japanese, or understand the world's capitals.　　A source said Simmons wanted to develop the product long before it was founded. Jawed Karim, YouTube co-founder Javid Karim, created a travel photography website fotons. The site's "about" page shows: "Our mission is to create the world's best set of photographic works." With your help, we want to catalogue well-known countries, cities, buildings, rivers, gymnasiums, sculptures, castles, libraries, zoos, islands, rivers, caves and volcanoes.　　"Users are also told that they can only upload photos of themselves, while the photo pixel is at least 1600x1600." Karim said in Ane-mail that fotons is in the midst of a major adjustment. In other words, he doesn't think the current website is a complete product. This does not mean that the site cannot be used.　　It is noteworthy that Simmons and Karim had worked at PayPal in the early years, and were members of the so-called "PayPal Party". In addition, 23andMe co-founder Linda Dar Aivy (Linda Avey) left the site in 2009 and founded a foundation dedicated to Alzheimer's research.　　Her new company is called curious. Curios's website currently has only one landing page. But sources say the company's work is mainly about monitoring and sharing personal health information. According to publicly released information, curious a total of 3 co-founder. (Zhang Fan)