Last year I took a position managing all of the real estate data systems and teams at eNeighborhoods. Going from one of the largest suppliers of real estate listing data to arguably the largest consumer of real estate listing data has been exciting and challenging. At eNeighborhoods, we now process over 575 MLS IDX feeds to power sites such as remax.com, century21.com, coldwellbanker.com, era.com, etc. Here is a visual representation of those feeds:

We still encounter some systems where RETS is not available for IDX, and that is the main area I want to assist the RESO Education & Outreach workgroup in reaching out to find out what are some of the remaining issues they have with RETS. I think the effort to "get the word out" about RETS is largely complete. We now need to understand the issues behind decisions both for and against adopting RETS as their primary means of data distribution.
If you are interested in assisting with this effort, please sign up to begin communicating with our workgroup team!