Dividend checks continue to get fatter in Corporate America, as more companies jack up their distribution rates.

Readers of the Income Investor newsletter can certainly appreciate that kind of thinking. Let's take a closer look at some of the companies that inched their payouts higher this past week.

Let's start with Schlumberger (NYSE: SLB).

The services provider for the oil and gas industry is pumping up its quarterly dividend by 10% to $0.275 a share. The next morning Schlumberger posted quarterly results that found revenue and adjusted earnings soaring 20% and 28%, respectively.

Williams (NYSE: WMB) is also on the move. Its new quarterly rate of $0.25875 a share may not seem like much of an upgrade over the $0.25 a share it distributed in its previous quarter, but it's more than double the $0.125 a share disbursements from a year earlier.

Williams is hoping to inch its rate higher every quarter, ultimately resulting in a 51% boost this fiscal year and a 10%-15% bump in 2013.

Men's Wearhouse (NYSE: MW) is also dressing up its yield. The chain of 1,175 stores selling fashionable suits is giving its quarterly payouts a 50% pop to $0.18 a share. Men's Wearhouse posted better-than-expected quarterly results last month, issuing encouraging near-term guidance to boot.

Finally we have McGraw-Hill (NYSE: MHP) proving that history does repeat itself. The textbook giant has come through with 39 consecutive years of hikes after last week's decision to increase its quarterly dividend by 2% to $0.255 a share.

A day later McGraw-Hill was teaming up with Apple (Nasdaq: AAPL) -- a company that has refused to return money to shareholders in the form of payouts -- to reinvent the way we consume textbooks as part of iPad's digital education initiative.

In other words, 39 years of consistent increases isn't making McGraw-Hill complacent or fearful of trying something new.

Subscribers to the Income Investor newsletter can appreciate the companies sending more and more money to their investors. The newsletter singles out companies that are committed to growing their distributions with market-thumping results.

Want to see what is being recommended these days? Go ahead and give the newsletter service a shot with a 30-day trial subscription. Who knows? Maybe the next thing that will get hiked will be your interest.

If you want to track these stocks to see if and when they hike their payouts again, consider adding them to MyWatchlist.