After the new math, I've been thinking of a strategy to maximize our profit. This strategy depends on new industries, because some idea prices can gain 100% or more each drop if they are rare. Here are the steps:
1. find an
industry with no production2.
find appropriate blogs for that industry, don't vote yet
3. reindex those blogs to get up-to-date valuation and links (incoming and outgoing links are both important!)
4. vote, reindex, and grab ideas starting from the highest valuation; don't reindex all blogs in one drop, but spread them into several ones
5. profit!
Why step 4? Say, you get 1000 ideas priced 100k each from first round. The price will be increased ~100% on second, third, fourth, ... rounds. So if you can make 5 rounds, your initial purchase has developed ~500%. Interesting? Let's try!
Update: you need 24 hours between step 3 and 4 :(