The e-commerce giant Amazon (NasdaqGS: AMZN) has been one of this year’s top performers as the retailer expands beyond household goods. For those interested in Amazon as a part of a diversified portfolio, investors may take a look at either retail or Internet sector exchange traded funds to gain exposure.

Amazon shares are up nearly 50% year to date and trading near a 52-week high.

“We believe the most disruptive force in retail in recent years has been,” according to Morningstar analyst R.J. Hottovy. “Amazon’s low-cost operations, network effect, and laser focus on customer service provide the company with sustainable competitive advantages that traditional retailers cannot match.”

Amazon is now involved in cloud computing services to stream on-demand entertainment, writes Eric McHinnie for Wall St. Cheat Sheet.

Additionally, the company recently introduced the new line of e-readers and Kindle Fires, which will compete with other computer tablets.