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I would first like to argue that by posting on twitter, you are hardly giving up any privacy--there's really not that much detail that you can give in 140 characters. But more to the point, I really don't think that posting a bunch of links is beneficial--especially if they aren't titled. For one, twitter shortens urls automatically, so they would all by bit.ly links. And by not having any type of description other than "this is cool," no one will want to click on it. It might be more acceptable if you wrote something like "Python-twitter seems really cool" and then put the link, but you didn't really do that in any of the examples you gave.