I suppose the most noticeable experiment in spelling reforem in the United States took place on the pages of the
Chicago Tribune. I thought it was still going on, and worried that I'd have to put up with "reformed" spelling when the Trib bought my favorite newspaper, the Los Angeles Times.
This article (click) says the Trib's experiment ended in 1975, so the Times was not affected. So far, the Times has not taken on the Trib's right-wing politics, either.
I read the Chicago Tribune occasionally when I was growing up in southeastern Wisconsin. The spelling always bugged me.

Be sure to take a look at the Website of the Simplified Spelling Society, http://www.spellingsociety.org. Click here for yet another spelling reform site.
-Joe Offer-