Manhasset, N.Y.--Citing the squeeze on information technology advertising, CMP Media L.L.C. said Tuesday that it plans to shut down New Architect, the monthly publication that was formerly Web Techniques. The March issue will be the last. The publication, which had a circulation of 140,000, targeted IT executives responsible for merging the Internet with new business technologies. Editorial content will be folded into CMPâs Software Development.