San Francisco-The Universal Description, Discovery and Integration project Thursday said it has begun initial testing of the b-to-b "yellow pages" standard. Ariba Inc., Microsoft Corp. and IBM Corp. are currently operating UDDI servers that talk with one another. A company that registers itself with these servers can have its basic business info available to other companies around the globe. Companies can register for free at http://www.uddi.org/register.html. The UDDI Project also announced that 92 new members have joined since the launch two months ago, bringing the total number of participants to 128. Separately, a group of companies Wednesday said they are working together to create a standard for securing b-to-b transactions between companies. The consortium said the Security Services Mar-Up Language will provide a common way for companies to safely conduct e-business transactions across multiple enterprises and e-marketplaces. Backers of S2ML include Art Technology Group, Bowstreet, Commerce One Inc., Jamcracker Inc., Netegrity Inc., Oracle Corp., PricewaterhouseCoopers L.L.P., Sun Microsystems Inc., TIBCO Software Inc., VeriSign Inc., and webMethods Inc.