The Internet has become an increasingly important feature of the learning environment for teenagers. Research by the Pew Internet & American Life Project in November and December 2000 shows that teens use the Internet as an essential study aid outside the classroom and that the Internet increasingly has a place inside the classroom. The Project surveyed 754 online youth ages 12-17 and their parents. Teens and parents report that Internet is vital to completing school projects and has effectively replaced the library for a large number of online youth. 71% of students report using the Internet at their primary source for their last major project, and they also report accessing online study aids like Sparknotes or CliffNotes. Beyond legitimate assistance with studies via websites, or email or Instant message communication with teachers, students also take advantage of the Internet to cheat, with 18% of students reporting knowing someone who used the Internet to do so.