The most comprehensive list on PageRank’s DO ’s / DONT’s I’ve ever found :
[ Google Ranking Factors ]

Note that at the end of the day, content is still king - when you’ve got excellent content, high PageRank will usually be yours automatically. But when that’s not the case, that article above may help you to find out what you did wrong.

For Webmasters :
[ Icons, Buttons, and Badges For Your Website ]

Lorelle’s website also contains other top notch articles / tutorials - please make sure that you have some time to spare before clicking on the link above.

[ ColorSchemer.com ] - a valuable help when you’re doing a design/graphic work. ColorSchemer helps you to choose the right color scheme - just pick a color, then ColorSchemer will suggest other matching colors for that.
Very useful.

Enjoy.

When you manage one server, it’s easy to have control of every aspect of it.

But when you’re managing tens or hundreds of them, even Superman will have problems.

System Management and Monitoring (SMM) software can help. By enabling you to monitor (and control) everything from a single application, it will drastically simplify your job.
However, until just about a year ago, the following condition is true for OSS (Open Source Solution) SMM :

Pick any two :
1. easy to setup
2. robust
3. easy to use

Fortunately, things has changed now.

On NetworkWorld’s article titled Open source companies to watch, there are no less than 3 companies providing OSS SMM software. And there are still more OSS SMM software out there.

Things has started to change for the better for OSS system administrators.

Willy posted an article discussing how to recover lost data in Linux.

I just would like to add a few more software that you can try for this purpose:

1. [ Foremost ]
Developed by the United States Air Force Office of Special Investigations and The Center for Information Systems Security Studies and Research, this may prove very beneficial in time of trouble.

2. [ DDrescue ]
This is the tool to use when you have a hard disk which is dying and have a load of bad sectors in it.
The tools is fully automatic, just run it and it will try its best to recover your data. It’s loaded with features; such as automatic merging (when there are several copies of the file, it will merge them to get the most complete version of the file), and robust recovery system; when run multiple times, it may be able to recover more of your data.
It also has logfile feature, which enable it to continue from the last point if it was interrupted.

Thanks to Willy for his post.