There are some important indications that its growth can continue.Unless you're retired and need to invest very conservatively, most investors want to have at least a few top growth stocks in their portfolios. There are no guarantees in the market, which is why diversification is so important. However, there are a few rare stocks that look like no-brainers. They're demonstrating incredible growth, are already profitable, and have strong growth drivers.MercadoLibre (MELI -1.69%) fits that framework, and ther ...