* 75% of CRM's float is sold short, market clearly agrees with you * AMZN has big FCF numbers, 2012 being an anomaly because of the big fixed capex expenditures. They grow the business without regard to engineering their GAAP earnings, which is admirable, and means the EV/FCF is probably a big, though somewhat reasonable 25-50. * FB analysis requires a DCF because they're growing earnings so fast. They're only 40 x estimated 2014 earnings * TSLA is not the same business model as F or GM, though they all nominally sell cars. Look at the leverage around licensing revenue that ARMH or QCOM showed.
I haven't read Twitter's S-1 and can't comment on it (50 x revenue makes it feel closer to CRM than any of the others), but I generally agree with your opinion that equities are near a peak because it is literally impossible for fixed income to be less attractive as an alternative and the Fed is clearly letting us know it's closer to the end of QE than the beginning. (disclaimer: nobody should make investment decisions based on my advice, I'm not a professional and you could lose all your money if you do, etc)
EDIT: after perusing the S-1 the revenue growth rate is incredible, so it may end up more like FB (which has only surpassed it's ipo price in the last month or so...)
EDIT 2: Yahoo!'s short data was laughably wrong, CRM's percent of float sold short is 10%