The markets are firmly in the red Monday, thanks in part to the decline of tech stocks as a result of problems that have recently come to light at Facebook (FB) - Get Report .

Here are three top takes from the columnists of Real Moneyand Real Money Pro, our premium site for active investors:

Jim Cramer: Facebook and the Fundamentals

Jim Cramer sees Monday's problems at  Action Alerts PLUS holding Facebook as a matter of the fundamentals vs. "who cares about the fundamentals. ... Does anyone think that users will stop using Facebook or its Instagram site because it let someone misuse data that you gave a customer of Facebook's before the election?" You can read his full take  here.

Tip-Off Time for Real Money's 'Sweet 16' Stock Selections

Our columnists select 16 great stocks and trades in honor of March Madness. Here are  the first four.

Macy's Needs to See Renewed Strength in the Short-Run

When TheStreet's chartist Bruce Kamich last reviewed Macy's (M) - Get Report  , he wrote that "the sideways price action of March is likely to result in another upside breakout and new highs for the move up." Does that forecast still hold? Click here.