The Vanguard Information Technology ETF ( VGT -1.80%) exclusively invests in stocks from the information technology sector, and it has beaten the S&P 500 every year on average since it was established in 2004. Here's why investors with a spare $550 (money they don't need for immediate expenses) might want to allocate it to one share of this ETF.

Vanguard Dividend Appreciation ETF (VIG) and Vanguard International High Dividend Yield ETF (VYMI) offer strong yields, diversification, and long-term growth potential for income-focused investors.

The S&P 500 (SNPINDEX: ^GSPC) index is made up of 500 of the highest-quality companies listed on U.S. stock exchanges. Last year, it delivered a return of 36.1%, which crushed the 25% gain in the S&P 500 (including dividends).