Do you frequenty post tweets of every articles from your favorite blogs or websites? If you do, then you can use a much more friendly alternative. Instead of visiting to a particular blog and take the trouble to copy and paste the URL, title, etc. on the microblogging platform, then I would suggest you to try out Pingvine.Pingvine a new and simple service that grabs an RSS feed from your favorite feed-supported blog and posts in on Twitter, Ping.fm and identi.ca. Even though there is only three platforms available, but I believe the folks there will continue to add more networks into the list when it gets more popular.
To start, simply select a network and enter your credentails or application key for Ping.fm. Punch in the feed URL and choose your update frequency (how many seconds, minutes, hours and days).
The best thing about this site is that it doesn't requires you to sign up for an account which can be quite frustrating to some. On the other hand, the downside is that Pingvine doesn't do any URL shortening and it uses the original long URL. However, you can at least have some control of it via Ping.fm since it supports URL shortening.
