I regularly listen to:

* http://www.tropicalmba.com/

* http://www.siliconreal.com/

* http://fourhourworkweek.com/category/the-tim-ferriss-show/

* http://www.londonreal.tv/

* http://mixergy.com/

* http://hanselminutes.com/

* http://shoptalkshow.com/

* No technology, no entrepreneurship. A lot of Terence McKenna: http://psychedelicsalon.us/

More recommendations: http://css-tricks.com/web-podcasts/