Analyst Bill Lerner says the media company's Q4 is solid, however, its guidance for 2001 was worse than expected. Lerner says not unlike other ad-based media, CNET's visibility on ad contracts has suffered -- given the likely bleak 2001 ad-spending environment. He cut his $580 million 2001 revenue estimate to $465 million, and cut his $0.51 EPS to $0.21. Lerner maintained his strong buy rating and his Single Best Idea rating. He believes a substantial amount of revision is reflected in CNET's shares. Lerner adds that the company remains the clear leader in technology vertical, with still robust long-term growth prospects. Finally, Lerner notes CNET's enviable balance sheet.