PROSPECTUS SUPPLEMENT RULE NO. 424(b)(1) (To Prospectus dated May 9, 2000) REGISTRATION NO. 333-95921 Earthweb Inc. 7% Convertible Subordinated Notes due 2005 and Shares of Common Stock Issuable Upon Conversion of the Notes --------------- Our common shares trade on the NASDAQ National Market under the symbol "EWBX." Investing in the notes or the common stock into which the notes are convertible involves risks that are described in the "Risk Factors" section beginning on page 2 of the accompanying prospectus dated May 9, 2000. Through May 17, 2001, the following selling securityholders have provided the information listed below. This list supercedes that set forth in the attached prospectus. Principal Amount of Notes Beneficially Owned Common Stock Common Stock and Offered Owned Prior to Offered Name Hereby the Offering(1)(2) Hereby(1)(2) ---- ------------------ ------------------ ------------ Alta Partners Holdings, LDC....................... $ 2,000,000 51,150 51,150 Argent Classic Convertible Arbitrage Fund (Bermuda) L.P. ..................... 5,000,000 127,877 127,877 Black Diamond Offshore, Ltd. ..................... 336,000 8,593 8,593 BNP Arbitrage SNC.......... 3,000,000 76,726 76,726 CIBC World Markets Interna- tional Arbitrage Corp. ... 1,000,000 25,575 25,575 Credit Research & Trading LLC....................... 2,415,000 61,764 61,764 Credit Suisse First Boston Corporation............... 1,000,000 25,575 25,575 Deutsche Bank Securities Inc. ..................... 7,220,000 184,654 184,654 Donaldson, Lufkin & Jen- rette Securities Corp. ... 4,950,000 126,598 126,598 Double Black Diamond Off- shore, LDC................ 1,079,000 27,595 27,595 Fidelity Financial Trust: Fidelity Convertible Secu- rities Fund(3)............ 7,500,000 191,815 191,815 First Albany Corporation... 2,000,000 51,150 51,150 Helix Convertible Opportu- nities LP................. 1,809,000 46,265 46,265 Helix Convertible Opportu- nities Fund LTD........... 1,080,000 27,621 27,621 Highbridge International L.L.C. ................... 2,500,000 63,938 63,938 Jackson Investment Fund Ltd. ..................... 15,000 383 383 JMG Capital Partners, LP... 750,000 19,181 19,181 Lehman Brothers, Inc. ..... 180,000 4,603 4,603 Leonardo, L.P. ............ 1,350,000 34,526 34,526 Lloyds TSB Bank PLC........ 3,000,000 76,726 76,726 Lydian Overseas Partners Master Fund............... 1,750,000 44,757 44,757 Merrill Lynch, Pierce, Fenner & Smith, Inc. ..... 1,400,000 35,805 35,805 Morgan Stanley & Co. ...... 10,000,000 255,754 255,754 Museum of Fine Arts, Bos- ton....................... 18,000 460 460 Nelson Partners Ltd. ...... 90,000 2,301 2,301 Olympus Securities, Ltd. .. 195,000 4,987 4,987 Parker-Hannifin Corpora- tion...................... 21,000 537 537 Paloma Securities L.L.C.... 1,000,000 25,575 25,575 Peoples Benefit Life Insur- ance Company.............. 1,500,000 38,363 38,363 ProMutual.................. 65,000 1,662 1,662 Putnam Asset Allocation Funds Balanced Portfolio.. 200,000 5,115 5,115 Putnam Balanced Retirement Fund...................... 37,000 946 946 Putnam Convertible Income-- Growth Trust.............. 941,000 24,066 24,066 Putnam Convertible Opportu- nities and Income Trust... 47,000 1,202 1,202 Q Opportunity Fund, LTD. .. 8,000,000 204,603 204,603 Tamar Securities, Inc. .... 1,000,000 25,575 25,575 The Common Fund FAO Abso- lute Return Fund.......... 270,000 6,905 6,905 Tribeca Investments, L.L.C. .......................... 3,500,000 89,514 89,514 Triton Capital Investments, Ltd. ..................... 750,000 19,181 19,181 University of Rochester.... 17,000 434 434 William Blair & Company L.L.C. ................... 20,000 511 511 Worldwide Transactions Ltd....................... 85,000 2,173 2,173 - -------- (1) Assumes a conversion price of $39.10 per share and a cash payment in lieu of any fractional interest. (2) Assumes that any holders of notes or any future transferee from any such holder does not beneficially own any common stock other than common stock into which the notes are convertible at the conversion price of $39.10 per share. (3) The entity is either an investment company or a portfolio of an investment company registered under the Investment Act of 1940, as amended, or a private investment account advised by Fidelity Management & Research Company. Fidelity Management & Research Company is a Massachusetts corporation, an investment advisor registered under Section 203 of the Investment Advisors Act of 1940, as amended, and is a wholly owned subsidiary of FMR Corp., also a Massachusetts corporation. Prospectus Supplement dated May 17, 2001 This Prospectus Supplement supercedes all prior Prospectus Supplements.