According to ResourceShelf, the incredible library search site RedLightGreen is due to be shut down at the end of November.
This has been expected since OCLC absorbed RLG a few months ago, and now with WorldCat.org going live, there are two sites duplicating each others work within the OCLC stable. It was always intended that RLG’s functionality would be brought into WorldCat, but I wonder how things would be different if there were two separate broad catalogs operating on the web.
The right type of competition can bring the best results, sometimes.