The Web N-gram Workshop was held on July 23, 2010 in Geneva, Switzerland, in conjunction with the 33rd Annual ACM SIGIR Conference. The workshop brought together leaders in information retrieval and language modeling to discuss the challenges in information retrieval and how language modeling approaches may help address some of these challenges, with a focus on using n-gram model to help solve them. The workshop consisted of 1 invited talk, 1 tutorial, 1 panel, 10 refereed paper presentations along with discussion sessions built-in in the agenda.