So many good ideas have already been proposed to improve the current ill-designed and manipulation-prone POTD/POTW, but I would also like to add my two cents... In order of preference:
Option 1. Get ride out of the photo exhibition from the front page, and use the two slots currently allocated to photos to display recently updated objects (e.g. mountain pages) or elder submissions worth being featured again. I know that elder area/mountain/route pages are sometimes featured again, but this is relatively rare (currently none of the six featured pages). Reserving slots for that might guaranty a more frequent appearance.
Alternatively (or combined with the upper proposal), It would be nice to see other worthy objects such as fact sheets and lists featured on the front page. For example, the following contributions could easily make it on the front page:
http://www.summitpost.org/handy-alpine-grade-facts/173430http://www.summitpost.org/great-map-sources/183131http://www.summitpost.org/8000m-peaks/171372http://www.summitpost.org/conversion-tables-of-climbing-grades/186649http://www.summitpost.org/volcanic-seven-summits/171202http://www.summitpost.org/the-snow-leopards/235234http://www.summitpost.org/seven-summits/171144http://www.summitpost.org/u-s-state-highpoints/171191http://www.summitpost.org/ultra-prominence-peaks-of-the-48-states/174556http://www.summitpost.org/colorado-13ers/185947http://www.summitpost.org/best-mountaineering-literature/257435http://www.summitpost.org/colorado-14ers-in-winter/337648http://www.summitpost.org/grading-hiking-routes/187254http://www.summitpost.org/russian-alpine-grades/178646Option 2. As for option 1, use the two slots currently allocated to photos in order to display other worthy objects. Add some new horizontal slots at the bottom of the front page (below the featured articles) for the featured photos, using the same width as for the article/TR. I guess there would be space for three slots allocated to photos, one more than currently, and this could be used in the following way: 1 slot for POTD (see below for criteria), 1 slot for a random picture (see below for criteria), 1 slot for an old high quality picture.
Option 3. Keep the front page layout as it is now, and modify the criteria in the following way (this is not far from what appeared to be the most consensual opinion amongst the different proposals made in this thread):
1) One slot for POTD, using the following criteria • A necessary change is to allow 24 hours for all pictures before it is automatically selected as POTD. As mentioned by other members, the current algorithm takes the highest voted picture during a calendar day (using UTC-5 or North American Eastern Time Zone as reference), meaning that a picture posted at 11pm will only have 1 hour to be voted, while a picture posted at 1am will have 23 hours. Last year I made a check of 50 consecutive POTD, and noticed that the median posting time was 1:39am (!). As an example, the new algorithm should ideally select for the POTD posted on 22 November the picture posted on 20 November which has gained the highest score within the first 24 hours after being posted (which is different from selecting the highest picture posted on 20)
• Facultative additional criteria (Bob Sihler's proposal): only select a photo which is attached to a newly submitted object (range, mountain, route, TR, article, etc. excluding albums). I personally think that it is too exclusive, with the additional risk of sub-standard or useless new contributions (e.g TR) created just for the sake of featuring the new pictures.
• Another facultative criteria (Mr. Chad's proposal): create a period of e.g. 30 days during which a member cannot have a second POTD featured. Initially I did not like the idea (sounds discriminatory), but this actually appears as the best option to limit the current abusive use of the voting system by certain. We should also consider this idea from the point of view of increased diversity, which can only be beneficial to SummitPost. The same is happening for mountain/route pages submitted by some prolific members: e.g. Dow William is certainly the best route contributor, but even though his new pages are of the highest quality, they will not all be displayed on the front page in order to increase the diversity of the site.
2) One slot for a random "good" picture, using the following criteria • A quality threshold (e.g. 87 or 87.5) is necessary to make an initial screening.
• The random picture should not be a way to increase someone's probability to be featured as POTD (otherwise this would soon lead to new manipulations of the system). This means that any random picture displayed should be at least 24 hours old.
• I would suggest Matt to add a few "undisclosed" parameters in the algorithm, so that it is not predictable which picture will be featured. For example including old "high quality" pictures, giving higher probability to pictures linked to recently created objects, limiting the number of pictures per member that could potentially be featured, etc.
• The "random" picture may change at a frequency shorter than 24 hours, or even for each upload of the front page.