In addition to our Sunday App of the Week feature, we also summarize some of our favorite B2B sales & marketing posts from around the Web each week. We’ll miss a ton of great stuff, so if you found something you think is worth sharing please add it to the comments below.

In the meantime, here are some B2B Reads that we love:

Sales Lessons From The Super Bowl: How You Can Master “Relaxed Intensity”

Athletes get “in the zone” for games but what can we as marketers take from that? Great read by Matt Shore

Unlock the Full Power of Your Testimonials

Use testimonials to inspire your sales team and figure out how to properly share them internally. Thanks, Colleen Francis

The Leadership Playbook: The Law of Accountability

Not everybody is motivated by the same things which is why it’s your job as a leader to hold them accountable for their actions. Couldn’t agree more, Anthony Iannarino

Why 80% of our B2B content marketing failed

You were probably one of the many companies that increased their content production last year. But did it really pay off? Good insights, Chris Sheen

Differentiation Requires Buying Process Disruption

Buying decisions are made up of a number of different matrices, make sure you know how to stand out in a crowd. Very true, Lee Salz

9 Heartfelt Ways to Thank Your Customers

There is an art to sending a real thank you. Make sure you stand out even after a deal is made. Thank you for this, Alice Heiman

3 B2B Marketing Trends for the Mobile Audience

More and more people are reaching for their cellphones when making a business decision and it’s increasingly applying to the B2B world too. Great read, Krystal Overmyer

What Your Failed Relationships Can Teach You About Leadership

There’s a fine line between work life and home life but in certain situations you can apply similar solutions to both. Love this post, Allen Gannett