Editorial

The previous issue marked a transition in the leadership of the ACM Transactions on the Web (TWEB). Our terms as founding Editors-in-Chief of TWEB have come to an end. We are extremely pleased with the progress that TWEB has made in the six years since its approval by the ACM Publications Board. The response from the research community confirmed that there really was a need for a premier journal focusing on Web-related research. TWEB has received a healthy level of strong submissions since its inception. TWEB established itself with a high impact factor as measured by ISI the first year it was eligible for consideration. Additionally, it is one of the most selective ACM journals based on acceptance rate. It also ranks among the top research journals in terms of downloads per article from the ACM digital library. We have received submissions in just about all of the major areas of Web-related research. When TWEB was starting out, we received more articles than expected in collaborative filtering and recommender systems as this was a hot emerging research area, and this has remained a popular area for submissions. More recently, TWEB has received an increasing number of articles related to social networks. We have had special issues on adversarial issues in Web search, service-oriented computing, query log analysis, and recommender systems. In recent years, we have not been able to accept new proposals for special issues because the influx of regular submissions has kept the publication pipeline full. A key factor in the success of the journal has been the outstanding editorial board. We would like to express our sincere thanks to the TWEB Editorial Board members, past and present, for their help in establishing the journal as the premier journal for Web research. We welcome Marc Najork as the new Editor-in-Chief and are quite confident that he will do an outstanding job of leading TWEB into the future.