Oh what a great question (and one I wish more publishers would ask, not only about frequency changes, but about title changes also)!
My attention is most easily caught by a short, prominent header - in this case "NEW FREQUENCY", "CHANGING TO WEEKLY", etc. That could be either in a letter, an email, or a sticky-note type thing on the cover of the issue. I would also expect my vendor to be notified; they send me such notices regularly.
Hope that's helpful.
Jeanette L. Skwor
Cofrin Library, Serials Dept.
2420 Nicolet Drive
Green Bay, WI 54311
From: SERIALST: Serials in Libraries Discussion Forum [mailto:SERIALST@list.uvm.edu] On Behalf Of Jason Hoefel
Sent: Saturday, October 11, 2008 11:37 AM
Subject: [SERIALST] Serial change
I had a quick question in regards of a
> serial changing from a daily status to a weekly status. Is there an
> institute standard to announce this change that librarians prefer? If a
> publication is making this change, is there someplace where Serials
> Librarians would expect to find this type of information other
> than the usual public announcement and statement within the
> publication announcing that the change will occur? Any thoughts
> regarding this would be appreciated. Thanks