If you do any kind of web development work on a Mac or even want to block or redirect access to specific domains, you have probably edited the system file /etc/hosts. If like me, you've recently upgraded to Mac OS X Lion and now find that entries appended to this file don't work, the reason is probably because there is no carriage return after the last line in the file.
To ensure that all your hosts file entries work correctly, including the last one, all you need to do is leave an empty blank line after the last entry in the file like this:

Pixaria 3.9.3 Released
Monday, May 7, 2012
PHP Security Vulnerability
Thursday, May 3, 2012
Documentation Updates
Thursday, April 12, 2012
Minor Update 3.9.2
Wednesday, April 11, 2012
Pixaria 3.9.1 Now Available
Tuesday, April 10, 2012
ArsTechnica Review Lightroom 4
Monday, April 2, 2012
Pixaria 3.9 Now Available
Monday, March 5, 2012
Admin Localisation Coming Soon
Friday, March 2, 2012
Pixaria 3.8 Now Available
Monday, February 20, 2012
Pixaria Design Services
Tuesday, February 14, 2012