Google Tuesday said it will continue to shut down several apps that didn't have the expected impact. Among those, Google Bookmarks List, Friend Connect, Search Timeline, and Google Wave. The company calls it an out of season Spring cleaning. Some might consider one of the apps a project as far away from search as a company could get. It's known as Renewable Energy Cheaper than Coal -- not really that obsure when considering the energy it takes to run server farms that power Internet searches.