maciej, I hope you'll read this; bookmarking has a bright future because it's social and has the enough potential to replace all search engines.
an unsocial bookmarking service is a real example of waste. to me, people who buys your unsocial archiving bookmarking service are not able to type 6 lines of bash scripts to keep their bookmarks in a plain text file. this is what I will do when avos kills delicious. I'll not pay for just archiving website who thinks I'm an idiot enough to buy a poor clone of delicious of 2005.
How can you be proud of selling a clone of an old version of a popular website? Come on!