I am a blogger and want to cross-post articles from my blog into Twitter? Go to FeedBlitz, type the address of the feed in the Subscribe box and choose Twitter from the subscription options. The other option is Twitter Feed but that requires you to have an OpenID.

I know that TwitPic allows me to post pictures on Twitter but I want to use my existing Flick account with Twitter. Go to TwitterGram and associate your Flickr name with your Twitter account. Now assign a special tag (say Twitter) and any picture that you post on Flickr with that Tag will automatically get posted in your Twitter account as well.

I just ordered a laptop on eBay and the owner shipped it via UPS. I want to track this package on Twitter. Follow TrackThis on Twitter and send this bot a Direct Message with your Airway Bill Number. You’ll be notified each time your package changes location. Works with FedEx, UPS, DHL and USPS.