btw: as far as my unerstanding goes, it’d not take more than a rating-plugin changed to not take a pre-defined number but a timestamp. A simple script should do the rest:
– (Actual Posting Timestamp) – (Entered Info Timestamp) = (Age of Info)
– mean deviation: ((Age of Info)+(n * Age of Info) / n) = X yr (The mean deviation of how old the information on my blog is, concerning all entries)
– Standard Deviation of the Mean: Showing in every Posts, how many years it’s away from the mean deviation. For example “Tokio Hotel is 20yr away from your SDM of 15yr” 😉
greets, martin
Lester Chan has a plugin wp_relativedate, try that for starters.