sponsored by rose communications from our studios in new york city, this is charlie rose. >> rose: mark andreessen is here. he is a founding partner of a venture capital firm andreessen horowitz established in 2009, the company now has $2.7 billion under management. it has stakes in facebook, four square, groupon, skype and twitter. this marks yet another phase of marc andreessen. he's a co-founder of netscape, that was sold to a.o.l. in 1998 for $4.2 billion. he created a cloud computing company called loud cloud which was sold torúuñ hewlett-packardn 2007 for $1.6 billion. as well as taking an active role at andreessen horowitz he sits on the board of facebook. "wired magazine" calls him the man who makes the future. he is in new york this week. i'm pleased to have mark andreessen back at this table. welcome. so what is the "forbes" philanthropy summit. everybody i know is there. >> it's a lot of the icons of philanthropy and new thinkers. i was on the same stage as mark bengehof. my lovely wife laura is speaking on social ventures. she teaches philanthropy. so it's bringing together icons and n