This week’s picks for the best investing and personal finance articles from around the web — a rare Saturday edition since we had strategy updates yesterday (If any links take you to locked articles, just do a search on the headline and you should find an unlocked version.)

Baby Boomers hugely underestimate what they need for retirement (Wall Street Journal). Low interest rates have changed the retirement income equation.

You’re not supposed to understand the Federal Reserve (NY Times). With the rate watch constantly in the news, do you even know what the Fed is or how it works?

Six key signals for the U.S. economy (Advisor Perspectives). Four reasons for optimism and two for caution.

Why it makes sense to save for college now (NY Times). An article for anyone who’s ever wondered, “If I save too much, won’t my child qualify for less aid?”

Where’s best? (The Economist). An interesting, helpful new approach to ranking colleges.

And from the blogosphere…

New Social Security rules: what you need to know (Oblivious Investor). Say goodbye to the popular “file and suspend” strategy.

Satisfying your activity addiction (A Wealth of Common Sense). Is it okay to have some “mad money” to invest?

Staying the course: easier said than done (Servo Wealth Management). Even pros have a hard time staying the course.

Mean reversion, small sample size, and the Mets (Above the Market). Especially for baseball fans, some comparisons between post-season player performance and the market.

The insidious nature of investing hindsight (See It Market). For anyone with a case of the investing woulda, coulda, shouldas, a little context may cure what ails you.

We’d love to hear your responses to any of the above. To weigh in, just meet us in the comments section.