Answer

A high-yield bond a/k/a junk bond is a high paying bond with a lower credit rating than investment-grade corporate bonds, treasury bonds and municipal bonds and a higher risk of default. Credit quality ratings will be below investment grade (a rating below BBB by Standard &Poor's or below Baa by Moody's credit rating agencies).  The SEC provides an Investor Bulletin, What are High-yield Corporate Bonds? 

Go to the Business Library's Company & Financial Information section for links to useful resources including a link to the following suggested resource.

Mergent Bond Viewer: Provides Moody's bond data on municipals, corporate bonds, government bonds, international bonds, convertibles, and various short-term instruments. Includes charts for rating revisions, maturities, and redemptions. It includes ratings and ratings history from Moody’s, Standard & Poor’s and Fitch.   
 

Standard and Poor’s NetAdvantage: Provides screening tools and profiles of bonds. Click on Companies and then either use the Bond Screener on the left OR under Select Publications choose Bond Reports.