Maybe it's a regional bias, but I frequently find myself using the Federal Reserve Bank of Minneapolis for economic research and commentary. It is also my link to the Federal Reserve Board and the eleven other Federal Reserve banks around the country. The Fed system as a whole is a rich source to mine for economic information, data, analysis, and research. A great Web site for learning about credit, bankruptcy, and other critical personal finance issues. The giant information company's Web site offers plenty of fodder for anyone with an interest in markets and current events.
Many people are deeply devoted to their Quicken.
Others prefer Microsoft's competing product. Both are good. The main mutual fund rating service. Every morning I check into this Web site to get the latest reading on the global economy from Morgan Stanley Dean Witter. Lots of good information and analysis.