Google data centers in late 2013 and began selling off the barges in 2014. Most of the software stack that Google uses on their servers was developed in-house. According to a well-known Google employee, C++, Java, Python and (more recently) Go are favored over other programming languages. For example, the back end of Gmail is written in Java and the back end of Google Search is written in C++. Google has acknowledged that Python has played an important role from the beginning, and that it continues to do so as the system grows and evolves. The software that runs the Google infrastructure includes:
Yahoo! Groups one of the Top-five page-view-generating sites across the Yahoo network. Yahoo! Groups functionality remained static between 2000 and 2005. In 2001 Yahoo! deleted adult groups from its search directory, making it very difficult to locate Yahoo! groups with adult content. A Yahoo! user who wishes to find a group with adult content must therefore either know the exact name of the group, or attempt to find it by using a search engine or one of several online adult group directories. This has created what some view as an "underground" atmosphere for Yahoo! adult groups. While it is unclear whether the