I use ULead's PhotoImpact suite. One of its integrated programs is ULead Album, which lets you classify and sort. However, all such programs require discipline and time, so I don't really use it. Instead, I use ULead's PhotoExplorer. While it can't sort across folders or classify, it does let me add notations. More important, I can set the thumbnail size as large as 320 x 320 pixels. When your display is set to 2,048 by 1,536 (as mine is when I edit photos; 1,920 by 1,440 when I don't), the large thumbnails are welcome.
Paul Stregevsky