A B C D E F G H J L M N O P R S T U V W X Y Z
  • Yahoo!

    Yahoo was a pioneer of web directories which later expanded to search. Yahoo was once more popular than Google.

  • YouTube

    YouTube (www.youtube.com) was launched in February 2005 and acquired by Google Inc. in 2006. The YouTube web site allows users to share videos and it offers a discussion area for each video.