Fairfax, Va.--Bucking the money-losing trend among b-to-b Internet technology developers, integration software company webMethods Inc. turned a profit of $2.7 million in the fourth quarter, compared with a loss of $5.9 million a year earlier. Revenue totaled $59.4 million, up from $17.6 million in 1999. WebMethods' success can be attributed to, among other things, its aggressive international expansion, which protected it against the U.S. downturn. The company has launched Japanese and European initiatives. WebMethods' announcement comes several days after it declared its intention to buy IntelliFrame Corp., a New York-based competitor, for $31 million.