Who? Martin Varsavsky is an Argentine/Spanish entrepreneur. Currently, he is CEO of the global wifi network Fon, an angel investor, and a professor at Columbia University. What? Over the past two decades, he has founded seven companies and invested in several others.

One of the members of the PayPal mafia (early employees at PayPal) has had an amazing track record. He was Director of Marketing at PayPal from 2001 through 2004. He launched and ran marketing for Simply Hired in 2005 and 2006. McClure gained attention both for his opinionated blog 500 Hats (as of 2011 one of the ten most-read blogs on venture capital finance).

I'm Seth Levine, a Boulder, CO-based technology investor and managing director at Foundry Group. While I love technology I'm also a husband, father, avid cyclist, snowboarder, and outdoors guy.

Keep up with articles from David Teten.

Thoughts on the tech startup world and other things I find interesting

Joanne Wilson is an angel investor who bets on companies founded and run by women. She also founded the Women's Entrepreneur Festival, an annual event in New York City dedicated to supporting a community of women entrepreneurs. In her blog, Wilson writes about investing, women in tech, food, art and other topics she is passionate about.

I'm a VC at Foundry Group. I live in Boulder, Colorado, invest in software and Internet companies around the US, run marathons, and love to read. -Brad Feld.

Nic Brisbourne es socio gerente de Forward Partners, una empresa comprometida a invertir en las principales empresas de comercio electrónico del Reino Unido.

Connie Loizos, editora de TechCrunch, lanzó StrictlyVC en 2013. Loizos se unió a Red Herring en la década de 1990 y ha estado informando sobre Silicon Valley desde entonces. Todos los días, Loizos publica un resumen de las últimas noticias financieras y cómo estos desarrollos impactan a las personas, negocios y comunidades.

Javier Megias es CEO y co-fundador de STARTUPXPLORE, la mayor comunidad de startups e inversores de España, y una de las más activas de Europa.

Además de ser consejero de varias startups y fondos de inversión, ha trabajado asesorando a decenas de empresas y organismos, como la Comisión Europea, lo que compagina con su labor de business angel y miembro de la junta de BigBAN Angels.

Javier también escribe un blog que ha ganado diversos premios de ámbito internacional relacionados con los negocios y las startups, entre ellos el galardón al mejor blog de negocios en castellano de 2011.