2. Simplified browsing. There are a lot of cases where you'd trade some of the power of a web browser for greater simplicity. Grandparents and small children don't want the full web; they want to communicate and share pictures and look things up. What viable ideas lie undiscovered in the space between a digital photo frame and a computer running Firefox? If you built one now, who else would use it besides grandparents and small children?
We have built one! our website, samfind - http://samfind.com just launched and we fill the gap for those who are less technically savvy. we concentrate on making your homepage easy to navigate and create and give you access to the websites that you use. The web can just be too darn big sometimes - and you don't need it all - all the time.
We think those who are more technically savvy can get into samfind as well. We have built widgets and gadgets for the firefox set who would like to place their samfind homepage onto the start page of their choice.
http://news.ycombinator.com/item?id=251821