I like to follow what the successful, well-known hedge fund managers are investing in. There is no better idea source than the portfolio of someone much smarter than me.
Jim Chanos wisely points out in the interview below that we need to be careful when looking into the 13F filings of hedge fund managers because we can't see the offsetting short positions. Without that information we really don't know how long the hedge fund manager really is.
Chanos still feels that the U.S. economy is in better shape than Asia which is slowing, but the U.S. market is up and Asian markets are down, so this fact is now priced in. Three years ago Chanos was long the U.S. and short Asia.
Right now Chanos has a large short position in the PC sector which he thinks is getting killed by mobility and the cloud. On top of that he sees issues with the accounting of Hewlett-Packard (HPQ) and Dell (DELL). He thinks Hewlett-Packard and Dell look more profitable than other companies in the sector because they aren't spending nearly as much on R&D which limits their futures.
He is completely mystified why the buyout shops are interested in Dell.