For example, I posted a question on SO after using Google to try to find an answer. I then turned back to Google and did a search for
netbeans validate jtextfield against regex and it was already the first result! Similar searches also put my question on the first page, usually in the top 5!
This is insanity. Did I get lucky and post just before an indexing? Is the popularity of SO leading to Google indexing extremely frequently? Or is Jeff using some kind of crazy SEO?