My boss has pointed out this piece of news covered by C&EN. Apparently, starting from July, all ACS journals will be printed in a “rotated and condensed” format, that is two pages on one printed page in landscape format. This is an effort to reduce printing and distribution costs.
In my opinion, this change is just one further step towards purely electronic journals that are not printed at all. I think this will deeply affect the way we present our data and how we look at formatting. Preparing a manuscript in a way meant for printing is different from one which will never appear in print. Some may welcome this change because it saves paper, others will probably miss the possibility of flicking through a new issue of JACS. Although I rarely go to the library to pick up a printed journal, I admit to reading printouts very often (see this post).
Update: Apparently, in 2010 the print versions will stop completely, with the exception of JACS, Acc. Chem. Res. and Chem. Rev. See also Nature News.