I don't think its just tech stocks, Almost every stock looks overpriced compared to their earnings.
I don't know about that. The stocks I own, which are mostly S&P 500 stocks, have been doing pretty well. Definitely not dropping 20% or thereabouts. This is a much-needed correction for social media stocks, because unlike bigger businesses with real earnings, the P/E on Twitter, Facebook, and the like are much higher than average. It's not surprising to me they've dropped like they did. There's kind of a flight to safety happening, where people want to own more stable companies with real earnings, and that happens once investors realize how inflated these stocks have gotten and how much of a bubble it could be.
That said, I do agree that a lot of stocks have gotten out of the comfort zone of value investors, and that includes blue chips and the rest. The stock market has gone a little mad in the past 5 years. A selloff is normal, though.
Yes, Google and amazon are next. Facebook, twitter, google, amazon will fall by -40% to -60%.
If you really believe that with all your heart, you ought to sell some of those stocks short--you could make a huge profit if they do fall.