Trying to decide what software you need to run a succcessful web business can be challenging. Personally, I believe that the minimum you need is a good web page editor (text, WYSIWYG, or no-code, whichever you like best) and a bitmap graphics editor. Everything else can be done with tools on your operating system. But I am a software junkie. I've got at least six different writing programs (not just web editors, but programs for writing like Pages or Microsoft Word). I have two or three different tools to help me record podcasts and videos as well as vector graphic tools for writing SVG and Flash. I could do my work without most of these, but it would be hard. What software can you not live without?