links for 2007-05-18

• I Was a RSS Virgin
  (tags: rss virgin web20)
• Pages Ranking Poorly in Yahoo Search But Well in Google?
  (tags: google yahoo serps search seo)
• Twitter Pro — $250 a year?
  Jason really wants Twitter pro. He says his business depends on it. I suspect he’s the only one.
  (tags: twitter web0)