Fools were out and about this week in an investing world jampacked with actions and ideas. Here are three articles you might find useful as you decide how to invest your money.

5 Stocks to Beat the Permabull
Fool contributor Matt Koppenheffer has a quibble with something that "stock permabull" Jeremy Siegel said. "I'm concerned that his always-on bullishness is causing him to dismiss a warning flag way too lightly," Matt wrote.

Read the article to see what Matt has to say and how it all connects with Yale professor Robert Shiller's cyclically adjusted price-to-earnings (CAPE) ratio, which measures the market's current price against average earnings over the past 10 years.

And rest assured that while Matt is no permabull, he sees plenty of opportunity in the market and remains a fan of Siegel. "One big reason for that is that he's an avid supporter of high-quality, dividend-paying stocks -- and I think there is still a lot of opportunity in that corner of the market," Matt wrote. He offers five stocks for investors to consider, including ExxonMobil (NYSE: XOM) and AstraZeneca (NYSE: AZN).

Google Zig-Zagats Into the Real World
What's this about Google (Nasdaq: GOOG) buying restaurant-ratings guide Zagat? It's bound to cause a stir at OpenTable (Nasdaq: OPEN), Groupon, LivingSocial, and Yelp, but Fool contributor Anders Bylund dug a little deeper, taking into account other recent Google moves.

"Google is on a massive yet sneaky brand awareness campaign," Anders wrote. "Equating Google with Zagat surveys is one tricky little way to raise the company's profile without spending advertising dollars. Google is not content with dominating the Internet. The company wants every Luddite to know its name, too."

Read the full article for more on Google's moves.

The Changing World of International Investing
"As far as I'm concerned, the main reason to invest internationally is that it hugely expands your opportunity set," Fool contributor Alex Dumortier wrote. "Stock markets are unlikely to be valued uniformly on a worldwide basis and at all times. When the U.S. market is overvalued, investors would do well to underweight U.S. stocks and look abroad for better opportunities."

Alex provides two pieces of advice for those picking international stocks and also offers companies to consider.

His advice: Pay close attention to valuations and zero in on "high-quality global companies that have exposure to emerging economies." In the consumer-products sector, Alex calls out Unilever (NYSE: UN) and Philip Morris International (NYSE: PM), while Rio Tinto (NYSE: RIO) pops up in the resources sector.

Read the article for all of Alex's insight on how to make international investing work for you.

Fool online editor Kris Eddy owns no shares of any stocks mentioned in this article.

The Motley Fool owns shares of Google and Philip Morris International. Motley Fool newsletter services have recommended buying shares of Google, OpenTable, and Philip Morris International. Try any of our Foolish newsletter services free for 30 days. We Fools don't all hold the same opinions, but we all believe that considering a diverse range of insightsmakes us better investors. The Motley Fool has a disclosure policy.