Here is a POTD tour we are working on - not trying to hijack or spam - just looking for similar feedback and to add to the thread:
New Homegrown POTD tour
1. Crucial - don't know about that but every marketing tool has its advantages and disadvantages. POTD is good for showing off update regularity and getting bookmarks.
2. quality of the pix and or thumbs is more important than hor. or vert. layout.
3. Our POTD is definitely geared to sell hardcore...
4. I think the recycling idea from a program owner perspective would defeat some of the advantages of a POTD.