2005, he left his day job to work on Delicious full-time, and in April 2005 it received approximately $2 million in funding from investors including Union Square Ventures and Amazon.com. When Delicious was first launched, it was the first use of the term "tag" in the modern sense, and it was the first explicit opportunity where website users were given the ability to add their own tags to their bookmarks so that they could more easily search for them at a later time. This major breakthrough was not much noticed as most thought the application at the time "cool" but obvious. Yahoo acquired Delicious on December 9, 2005. Various guesses suggest it was sold for somewhere between US$15 million and US$30 million. In 2018, Schachter said the actual number was "definitely less" than US$30 million. On December 16, 2010, an internal slide from a Yahoo meeting leaked, indicating that Delicious would be "sunsetted" in the future, which seemed to mean "shut down". Later Yahoo clarified that they would be selling Delicious, not ending it. This news resulted in Delicious users looking for alternative sites. This benefited Pinboard, also a bookmarking site, which saw a huge surge of traffic and activity on its site. Various other services such as Google Bookmarks and Spabba also offered bookmarks migration tools to allow users to migrate and safeguard their bookmarks out of Delicious. On April 27, 2011, Delicious announced the site was sold to Avos Systems, a company created by Chad Hurley and Steve Chen. Unbeknownst to members, Yahoo continued to operate the site until September 2011. On September 26, 2011, Delicious launched its completely new version 3.0 design in beta. This redesign came in as a surprise to many of its users, with many features being disabled, removed or temporarily unavailable. AVOS Systems removed the Delicious Support Forum and had advised users that communication with Avos should take place via email. Reaction from users was overwhelmingly negative. On November 9, 2011, AVOS Systems announced that they had acquired the link-saving service, Trunk.ly. Trunk.ly offered to automatically save all links that users have "liked" on Facebook, Twitter and LinkedIn. This acquisition led to the launch of Twitter Connector on Delicious on March 2, 2012. On May 8, 2014, Science, Inc. announced it had acquired the Delicious website from AVOS, without acquiring staff. Science, Inc. is a "technology investment and advisory firm", which said it