Oscar one of my pictures made it again in flickr explore...cool !
See it somewhere on this page...Near the end.
The flickr explore page presents a ranked list of "the best pictures of the day". There is one list per day, containing 500 pictures, and constantly updated, based on :

  • number of times the pic was seen
  • number of comments
  • number of time the pic was faved (this little pink star in the upper left corner)

There are some tools out there to check if you currently have one or more pics in Explore : Big huge labs offers this. Enter your username, done...