Weekly Roundup #2: Public relations and influence, mobile + business travel, and Tampa's Snowmageddon?

Here's this week's selection of interesting stuff for busy marketing and communications pros. I share these and other items over on Google+ Let's connect there, or on LinkedIn. Meanwhile, in Tampa Bay we prepare for potential* snowmageddon.

• Christopher Penn is writing an interesting series on public relations through the lens of the book Influence: The Psychology of Persuation. He's looking at PR through the six characteristics of the book: scarcity, authority, consistency, social proof, liking and reciprocity.

• Scott Monty looks in-depth look at the triumphs and tragedies of "real-time marketing." This is all just a variant of David Meerman Scott's Newsjacking, right?

• C.C. Chapman with some great tips on how companies can tell a visual story -- including how Pew Research found a unique way to leverage their brand and content on Instagram.

• On the travel side of things, Skift looks at how mobile will change the way we travel by 2015. (Hint: less workers at the airport.) Shocking stat: just two percent of airline sales are bought on a mobile device today.

*By prepare, I mean switching from flip-flops to tennis shoes.