UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D. C. 20549 FORM 8-K Current Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report: December 20, 2005 WORLD ENERGY SOLUTIONS, INC. (Exact Name of Small Business Issuer in Its Charter) Florida 0-25097 65-078-3722 (State or other jurisdiction (Commission (IRS Employer of Incorporation) File Number) Identification No.) 3900A 31st Street North, St. Petersburg, Florida 33714 (Address of principal executive offices) (Zip Code) Registrant's telephone number, including area code: 727-525-5552 Advanced 3-D Ultrasound Services, Inc. (Former Name or Former Address, if changed since last report.) Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: [ ] Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) [ ] Soliciting material pursuant to rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) [ ] Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) [ ] Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) SECTION 8 - OTHER EVENTS Item 8.01 Other Events -- Teaming Agreement. On December 20, 2005, World Energy Solutions, Inc. ("WES" or the "Company") entered into a Multi-Project Teaming Agreement (the "Agreement") with Chickasaw Nation Industries, Inc. ("CNI") to facilitate the Company's participation as a sub-consultant/subcontractor regarding projects pursued by the team with CNI as the Lead Party/Prime Contractor. The term of the Agreement is for one year. Pursuant to the Agreement, CNI and WES plan to jointly cooperate to bid on and make proposals for contracts to offer governmental entities/agencies and private customers comprehensive energy savings and construction solutions for government, commercial, industrial and residential facilities. SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized. WORLD ENERGY SOLUTIONS, INC. (Registrant) Dated: December 23, 2005 By: /s/ Benjamin C. Croxton --------------------------- Benjamin C. Croxton Chief Executive Officer Chief Financial Officer