WSJ – The plunge in markets worldwide is starting to open up some bargains for long-term investors. As usual, you should ignore the panic around you and look for solid value. Don’t worry what the other guy is doing: Worry about your own money.
I don’t think stock markets overall are cheap yet, so I wouldn’t be an indiscriminate buyer, even in this rout. But there are opportunities. If you stick to quality you should do well over time.