Daniel Schwabe recently kicked-off a discussion regarding Finding SPAQL endpoints? over at the email@example.com mailing list.
Basically, Daniel asked if it was not possible for every linked data publisher to follow a simple convention, that is to have the SPARQL endpoint available at common location such as /sparql – as Daniel found out, this is the case with most LOD datasets anyway these days.
Though the proposed good practice currently would be to publish a robots.txt that points to a semantic sitemap which in turn is the entry point for a voiD description, Daniel’s proposal is appealing. Simple and effective.
Additionally, it somehow reminds me on the /host proposal by Mark Nottingham and Eran Hammer-Lahav.