Author Solutions (a.k.a. AuthorHouse), a Bloomington, Ind.-based self-publishing company, has acquired rival iUniverse for an undisclosed amount. Author Solutions is a portfolio company of Bertram Capital. iUniverse had raised over $39 million in VC funding from firms like Warburg Pincus, including a 2001 infusion at a post-money valuation of approximately $131 million (Warburg later sold its position back to company management). www.authorhouse.com www.iuniverse.com