unless you know what you're doing, it is probably a waste of your time. but it certainly will not hurt you. it can only hurt you to link to bad neighborhoods.
Yes, correct, but also be sure to only link to sites that are pretty much related interest to yours. That's actually logical (I don't mean if you sell cosmetics to request a link from sophora.com obviously this is your competitor) but you'll want to get links that are related, so that when you are attracting traffic, the visitors you get were actually looking for what you offer.
Are does Directory good?
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