Final answer:
Kleinrock's ATX service is a tax research platform designed for small firm practitioners offering a comprehensive database for tax compliance and consulting.
Step-by-step explanation:
Kleinrock's ATX service is a tax research platform tailored to small firm practitioners who need access to a robust database of tax law resources. This service provides tools and information necessary to conduct tax research effectively, including the latest tax codes, regulations, and case law. This platform helps accountants and tax professionals stay informed on tax-related matters, aiding them in offering accurate and up-to-date tax advice to their clients.