Unsecured Promissory Note

Exhibit 10.1 NOTE Date: November 16, 2006 Maker: Claimsnet.com, Inc. Payee: National Financial Corporation Place for Payment: 14860 Montfort Dr., Suite 250, Dallas, TX 75254 Principal Amount: One Hundred Thousand U.S. dollars (USD$100,000.00) Annual Interest Rate on Unpaid Principal from Date of Funding: Eight percent (8%)Terms of Payment: Principal and interest shall be due and payable on demand, interest being calculated on the unpaid principal balance to the date of each installment paid, and the payment made credited first to the discharge of interest accrued and the balance to the reduction of the principal. Accrued and unpaid interest shall be computed on the basis of the actual days elapsed in a year consisting of 365 days on the principal.Annual Interest Rate on Demanded, Unpaid Amounts: The highest rate allowed by law.Security for Payment: None Maker promises to pay to the order of Payee at the place for payment and according to the terms of payment the principal amount plus ...