If Twitter Tools is not working and there is an error in the Apache log:
Ubuntu command to install CURL is apt-get install php5-curl
Also will fix blank screen when posting with Twitter Tools active.
"It is great to work with someone who is efficient and competent. I’m so impressed that you sent me an email after our conversation stating what we had discussed and reassuring me that you understand what I needed done and what you would be working on. You’re an outstanding example of how IT guys should conduct themselves. You get it done and you do it right without any grief. Thanks for all your help at a reasonable rate, Joe."
Danise Rosak, www.danaydesign.com