This is Phyloscan Version 2.0, implemented by Michael J. Palumbo, Lee A. Newberg, and C. Steven Carmack. If you use this server for your research, in your publications please cite:

C. Steven Carmack, Lee Ann McCue, Lee A. Newberg, and Charles E. Lawrence (2007) PhyloScan: Identification of transcription factor binding sites using cross-species evidence. Algorithms for Molecular Biology, 2(1), article 1. PubMed: 17244358, doi: 10.1186/1748-7188-2-1, Google scholar

Phyloscan Version 1.0, for scanning E. coli sequence data, can be found here.