Portland, Maine--An Internet site specializing in providing b-to-b exchange services among companies competing in the $33 billion U.S. wholesale seafood market said Monday that it has netted $12 million in funding from CMGI, Andover, Mass. The company, Gofish.com in Portland, Maine, said the investment brings its start-up funding to $41 million. The cash comes from CMGI's $1 billion B2B fund, established late in 1999. The site features secure transactions, news from SeaFood Business magazine and credit reports on trading partners. GE Equity, CIT Group, Bedrock Capital Partners and Diversified Business Communications are other venture capital firms already invested in Gofish.com.