The 17th International World Wide Web Conference (April 21 - 25, 2008, Beijing, China) has a workshop session titled “Natural Language Processing Challenges in the Information Explosion Era” (NLPIX 2008). This workshop is calling for papers dealing with Natural Language Processing (NLP) issues on multiple topics, including trust/credibility evaluation of Web documents using NLP. The deadline for paper submissions is January 26, 2008.