The Internet's first offshore bank has launched a marketing campaign  that spokesmen said will allow it to grow 1,000% within the next 18 months. 
Chartered on the Caribbean island of Antigua in 1994 for the specific  purpose of conducting offshore banking electronically, the $100 million-   asset European Union Bank (http://www.eubank.com) began promoting itself   last month through clickable banners on World Wide Web search engines like   Excite, Lycos, and Opentext.       
  
For a cost of only $50,000, their advertisement has been accessed seven  million times and has received approximately 60,000 "hits." That, in turn,   has led to 1,000 E-mail messages from potential clients, and almost 150   activated accounts for the bank.     
Bank officials see a ripe market among clients seeking tax advantage  through offshore banking. "Instead of having to travel tens of thousands of   miles and spend $25,000 to open an account, the same services could be   accessed electronically with an initial deposit as low as $2,500," said   Kenneth J. Suhandron, the bank's president.       
  
Lord Benjamin Mancroft, recently reelected as chairman of the board,  took pains to point out the bank's above-board nature: "We are very   conservative and ordinary in all ways except for our marketing."