[eterno]

I think distribution is the key. You built a good product and ppl like it, that does not mean they will start using it. (Welcome to the real world, by the way).

To make it very clear, there are only 4 things you can do to tackle distribution.

1. SEO - Will not work in your case because it typically works best were large amounts of original content is getting generated. (think ugc)

2. SEM - Will again not work in your case because lifetime value of visitor is not much. Plus conversion rates are low with extremely low deal size. (Let me know if any of this is not clear).

3. Widgets - dont think how this will work for you.

4. Go B-to-B - I think this is the best option available for you right now. Essentially offer this as a service to hosting companies and domain registrars. Charge them a usage fees or an ROI rate. But this will require some real world busines development where the rules of the internet do not apply. If your tool is good, it could also be a nice little acquisition target.

[eterno]

Also anything else will NOT work. Bookmarking will definitely not. Noone uses bookmarks.