Where can I discuss about my ideas?

I have a lot of ideas crossing my mind lately. I need people to comment on them. I can't figure out myself whether they are useful or not. I'm too focused, one might say. Friends and family aren't an option, because they're just not interested. I don't blame them. I want honest opinions from complete strangers. Where do you discuss about your idea(s)?

How far have you gone in developing these ideas?

If they are in the form of a simple web page, and you've got some sort of tracking in place, then feel free to post on here, I'm sure you'll get some valuable feedback.

Oh, and I've just dropped you a quick email if you want to chat over Skype or whatever!

why not publishing them in a personal blog and sending links in various social platforms, like HN or google+?

although with HN, lots of topics remain neglected, especially if they appear in non-US daytime

You need to work out whether you want opinions from potential customers or from industry peers.

Arguably both are important when considering any startup idea.

I can't help you find the potential customers, but when it comes to peers it is important to have a strong network of industry friends, contacts and mentors. If you don't have that to bounce an idea of then you're going to come equally stuck later on down the road when you need to lean on a network for potential hires, business advice, etc.

A strong contact network you can rely on is a key part of success.

if you start posting at G+, feel free to add me, will be glad to share thoughts.