My advice? Read financial magazines and sales pitches, paying particular attention when non-financial magazines suggests a good investment. When you read enough, you will get a feel for what is hot, trendy, and being overpriced.
Don't buy those stocks or funds!
In my experience, by the time the information that I get has filtered down to that level, the trend is priced into the product. Trying to out-sharp the fray is fishing over-fished waters and playing to brokers strengths and individual investors weaknesses.
My strengths are time and the nerve to buy when I have just 'lost' several years income in the market. I am still working on the acumen to sell when things are so good that they can't go down. The best that I have found so far is re-balancing and indexing.