If you like exchange-traded funds (ETFs) -- those strange beasts that seem to be part stock, part mutual fund -- who could blame you? They  offer many attractions to investors frustrated by traditional index funds:

  • You can buy or sell small amounts, even one or two shares, for a few hundred dollars or less. (Mutual funds sometimes have minimum investment requirements of $3,000 or more.) Of course, such tiny trades aren't always smart, given the broker fees you'll incur.
  • You can manage your taxes better, since ETF tax effects happen only when you sell.
  • ETFs are generally less expensive, with expense ratios (annual fees) often less than 1%, whereas mutual fund fees often exceed 1%.

Doing good
Perhaps you're also interested in socially responsible investing (SRI), and have sought companies that have good records on environmental and social issues. Green Mountain Coffee Roasters (NASDAQ:GMCR) won our Fool Award for the most socially responsible company earlier this year, beating out Whole Foods (NASDAQ:WFMI), but plenty of other companies also boast good track records on important issues.

For investors seeking someone to help them with SRI, socially responsible mutual funds use various strategies to pick stocks. Unfortunately, many SRI funds don't offer sterling performance.

Best of both worlds
The good news is that those who prefer ETFs to funds, and who gravitate toward SRI, can combine those two aims with socially responsible ETFs. Here are two possibilities:

  • iShares KLD 400 Social Index Fund (DSI): You can track the Domini 400 Social Index with this ETF. It looks for companies with good records on social, environmental and governance matters, and counts Microsoft (NASDAQ:MSFT) and Johnson & Johnson (NYSE:JNJ) among its top picks.
  • iShares KLD Select Social Index Fund (KLD): This ETF tracks the KLD Select Social Index, which aims to perform much like the S&P 500 while seeking companies strong on social, environmental and governance matters. The fund owns many prominent S&P components, including Procter & Gamble (NYSE:PG), IBM (NYSE:IBM), and Chevron (NYSE:CVX).

Learn more here:

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Longtime Fool contributor Selena Maranjian owns shares of Johnson & Johnson and Microsoft. Green Mountain Coffee Roasters is a Motley Fool Rule Breakers pick. Whole Foods Market is a Motley Fool Stock Advisor recommendation. Microsoft is a Motley Fool Inside Value pick. Johnson & Johnson and Procter & Gamble are Motley Fool Income Investor picks. The Fool owns shares of Procter & Gamble. Try our investing newsletters free for 30 days. The Motley Fool is Fools writing for Fools.