i guess, if you want to work at these companies, then you might want to read their (eg. google and yahoo) employee's blogs. maybe it'll make you want to work for them more, or find that those people are so boring that maybe you might think again?
someone thought it was a good idea to ask google to tell them who actually has a blog in google and yahoo. an answer that was worth $100!
You can reply to me about this on Twitter: Tweet to @liquidx