Internet media company Yahoo! (YHOO) was down 21.5% in preopen Island trading, falling below $24. The company said after Wednesday's close that fourth-quarter earnings were 13 cents a share, meeting the Street's estimate. But revenue came in at $310.9 million, below analysts' consensus estimate of $315.1 million. And the company said 2001 earnings would be 33 cents to 43 cents a share, below the consensus estimate of 57 cents. ABN Amro and Credit Suisse First Boston cut their earnings estimates for Yahoo!. Other Internet stocks fell in sympathy. Online ad agency DoubleClick (DCLK) was down 19.6% and eBay (EBAY) - Get eBay Inc. Report fell 11%.