WSPRnet data extractor
if someone is interested - I've build a spot extractor for long-term data analysis.
Have a look at http://dl2sba.com/index.php/funk/wspr/282-my-wspr-collector
Keep in mind - it is not intended to replicate the WSPRnet database - only for spots related to me as transmitter. I found, that polling every 5min for my new spots is sufficient.