A correction has been appended to this article.

While SXSW was in full-swing -- and making the transition from interactive to music -- Starbucks had turned 40 and the iPad 2.0 was out in the world. It could have been a big let-down week for check-ins, especially as Starbucks had nearly crested 200,000 the previous week. But things were actually up in most corners of our check-in chart. One retailer trying to feel some more check-in love is Radio Shack. Offering 10% discounts to anyone who makes a purchase in the store -- 20% if it's your first check-in at the location -- the electronics retailer has nearly doubled its usual check-in total for the week, but still falls far short of our top 10 list behind brands like Vons, Sears, Urban Outfiters and Dollar Tree. Maybe these kinds of results will increase with the Foursquare version 3.0 feature showing all deals nearby. We certainly noticed more deals than we would have otherwise, and it's a handy way to find discounts even as you're just walking down the street.

As SXSW showed us, Foursquare will have a lot of competition gunning for it as the location-based services and the daily-deal services race to merge these two spaces and compete for market share.

Here's your weekly top 10 chart.

	MERCHANT		CHECK-INS (PAST 7 DAYS)	WEEK OVER WEEK CHANGE
1

Starbucks

185,449

7%

2

McDonald's

75,383

21%

3

Walmart

46,224

23%

4

Target

41,671

18%

5

Apple

25,929

3%

6

Best Buy

18,480

4%

7

KFC

17,797

18%

8

Costco

15,425

13%

9

Chipotle

14,575

6%

10

Burger King

14,445

17%

For more about Trendrr, take the Trendrr tour. Questions about this chart? Please e-mail Matt Carmichael and follow @adagestat on Twitter.

~~~

Correction: A previous version of this story under-counted check-ins at Radio Shack locations by omitting check-ins that misspelled "Radio Shack."