Suggestion: make ability to search in massive lists of domains in YahooBoss
Few years ago, I have created custom search engine based on Google CSE. It's good solution to build own "search engine" for specific niche. Unfortunately, this solution is very limited. For example, you can't customize search result as you need. But strong side of Google CSE is ability to search in the list of selected domains only.
YahooBOSS can search in selected domains ("sites" param) also, but length of GET query request is limited. But real search engine for specific niche may contains more than 30 domains... For example, I want to search documents in selected 2500 websites.
My suggestion: make ability to search in massive lists of domains. I think, if Yahoo can make alternative for Google CSE it will be additional breakthrough.