Dennis Crowley's Foursquare is on a roll. As Dennis talks explains, Foursquare is about making cities easier and fun to explore.

In his backstage discussions with Philip Nelson, he talks about ecosystems and of course the 16 Candles badge that his personal favorite.

Christopher Weingarten is an outspoken and very experienced music critic. It's people like him that are trying to keep the process of reviews and music recommendations pure - and something above the line of what he sees as "Good writing dies at the hands of search-engine optimization"

Philip Nelson's interview helps guide Christopher's insights and infinite wisdom in keeping it very (very) real.

Hank Wasiak brings incredible pedigree to the #140Conf from the world of the Mad Men days of advertising.

Interviewed by my #140Conf buddy, Philip Nelson, He talks about what a great time this is for the advertising industry to reinvent itself from being just about the 4 P's - Product, Price, Place and Promotion and adding in the 5th P - People.

Hank is the author of the recently published book, Change the Way You See Everything.

Ann Curry needs no introduction. She took part in the first 140 Characters Conference last June and returned again yesterday to share her insights, and infinite wisdom in a heartfelt talk about the impact of platforms such as twitter.

Ann shared her story with Philip Nelson about her being an 11 year old girl, and seeking advise from her Dad in terms of what she could do with her life.  The way to make a difference is to give people people information so they can make a difference. 

Watch this video and please, pass it on.  It's an inspiring discussion that shows how people are trying to do good - and social good on the social web.

Here's Philip Nelson with Ivanka Trump at the 140 Characters Conference, as she shares her advise for young entrepreneurs interested in social media.

She talks about how to bolster and grow your grand with personality and growing one's identity and the opportunity to be consistent with message and being persistent with your online presence.

Here's Philip Nelson interviewing advertising legend, Donny Deutsch at the 140 Characters Conference today in New York.

Donny speaks about brand essence in the context of the emerging social web.

Here's Philip Nelson interviewing - yes, Miss America, 2010 - Caressa Cameron at the 140 Characters Conference today in New York.

The role of Miss America has changed and Caressa opened today's conference proceedings - crown and all.

Here's her take on how social media and the State of NOW is affecting her role and ability to connect with her followers in her reign at Miss America.