Bank of America opened up Internet access to credit card account information Wednesday. The free service enables ‘BankAmericard’ cardholders to check balances, recent transactions, available credit and view up to seven months of account activity. Cardholders may also download account information into financial software programs and send e-mail messages to BofA’s customer service department. The bank is also offering the capability of linking several personal BofA credit card accounts to enable customers to view their entire account history at once. Bank of America’s web site has received a number of awards and offers more than 2,500 pages of information.