Yeah your current logo is horrible. And speaking of horrible stuff, I think you should decrease the tags, deemphasise lesser important links and work on the padding. It all looks VERY messy.
On top of that, I have no idea what your website is about - until I look at every link to find that literally THE LAST link on the website is the explanation.
Now for the logos.
http://i.imgur.com/A6DcE80.png
Bottom I dislike they look a bit corporate and doesn't convey anything about the site as far as I gather.
Middle is kinda okay, but it just looks like financial discussion.
The top ones.
The tree: Nice logo, money grows on tree. Still, it is kind of "invenstment-y" but the logo itself is cool so I like it.
The growing tree: It is cute, and something about money will grow.
Brain: Kind of getting there, ideas = money. Now the logo itself is too monotone / too green and will be hard (like the tree) to draw and make nice in smaller situations.
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I don't think any of them 'clicks' with the site itself, but I can't really come up with something of my own. Maybe a lightbulb combined with a subtle $ inside and an upvote? It's a tough one.
Or, since the name is valME, maybe just a profile shape with a $ inside? It connects the money with the "me" aspect.
Or, a coin with an upvote inside it. That would signify that the 'upvotes' are the 'currency'/money.
