Seven years ago, AOL acquired Advertising.com for some $500M, a nice payday for brothers Scott and John Ferber, who had co-founded the company, named TeknoSurf.com, in 1998.  Valhalla founders backed the company as investing professionals at predecessor firms.

Estimates are that the company, before and after the AOL acquisition, has grossed some $3B in online products and services.  Understandably, the Ferbers (and other investors) felt that we left money on the table by what now seems a “premature” acquisition.

A made-to-order Serial Entrepreneur scenario.  Scott Ferber has taken another turn at bat with TidalTV, a video ad network founded in early 2008, and this summer John Ferber has stepped up as co-founder of Domain Holdings, a “domain-lifecycle management” company.

In both cases Valhalla has invested in its winners.  Why not?  These are brilliant guys with a great business sense and a technology-enabled advantage that should help them win — and win perhaps even bigger than before — in their new ventures.