1) Bookmark 2) Bookmark for some 3) Bookmark of a sort 4) Bookmark of sorts 5) Corner fold 6) Doily material 7) Ersatz bookmark 8) Folded corner 9) Impromptu bookmark 10) Indication of a bookmark 11) Informal bookmark 12) Informal page marker 13) Literary fold 14) Makeshift bookmark 15) Mark for future reference