This document provides a list of useful websites for circuit analysis software, research tools, and books. It includes links to Microwind for circuit layout and FinFET design, Qucs which has a similar structure to ADS, and SIMetrix for PLL and ADC/DAC simulation. Research tools listed are WolframAlpha, ScienceDirect for topic overviews, and Archive.org for researching and reading papers and books online. Suggested books cover topics such as wireless receivers, Python programming, modern control systems, frequency response, and analog filter design.