Me and my team just finished Market Roadie - tool for startups and new businesses, that's supposed to help them, by improving SEO, providing backlinks, finding potential customers and investors, and more. Feedback says we are on a good track, which a great sign, even though there is much more to be done. If you want to help us with feedback, you can do it over here :)

When it comes to new ideas, I'm thinking about making a Twitter tool, that should help with getting new followers and finding your audience by their interest.