You could definitely write some blog posts about these ideas. I think it could be a great way to find technical co-founders willing to contact you about them.

Also, city tech events might be a good place.. such as startup drink and the like. Just going there and listening to ideas.. but being on the looking for opportunities. I.e. Someone is telling how his startup isn't doing that well and might be on the lockout for a new venture.

Imgur for excel doesn't mean that much to me.. What's the context, the problem, the value proposition, the channels, etc.