The worst offender is the NRA.
First, you can't just go to their web site and find matches, you have to read the "Shooting Sports" magazine. Yes, if you dig, you can find it on-line, but even then, read the first paragraph of the match listings.
"In order to be listed, NRA must sanction matches by the 15th of the month, 2 month prior to the publication date of the magazine."
First thing, listing matches in an on-line magazine isn't exactly having your match schedule "on-line". Secondly, the info is THREE MONTHS STALE. And lastly, while most provide an email address for more info, hardly any give a web site URL. With a little searching one can usually find the web site, but why it's not listed in the publication I don't know.
IDPA, USPSA, SASS, IHMSA, GSSF all do so much better job of listing matches.
NRA is still pretty much into the "club" mentality. If you belong to a club that sponsors the matches you want, then what more could you ask for? One day, I hope, they'll join the 20th century ... or maybe, be still my heart, the 21st,