How does one keep commercials/advertising off the list? It hasn't happened to mine yet, but one list I belong to (MUSEUM-L) has just had an ad posted on it (for a new book privately published). Are there any sanctions or ways of blocking such a posting (and, yes, I know about filters). Anita Cohen-Williams; Reference Services; Hayden Library Arizona State University, Tempe, AZ 85287-1006 PHONE: (602) 965-4579 FAX: (602) 965-9169 INTERNET: [log in to unmask] Owner: HISTARCH