Tuesday ushered in a series of generic top-level domains (gTLDs) that for the first time in Web history, include Arabic, Chinese and Russian characters. The new gTLDs -- which are the suffixes to Web addresses, such as ".com" and ".net" -- were approved by the Internet Corporation for Assigned Names and Numbers, or ICANN. ICANN invited applications for new domain names in 2012, at a cost of $185,000 a pop.