This is a comparison of most popular content-management-systems Drupal 6x and Joomla 1.5 series.

Drupal pros: free, professional coded, multilang, multisite, performance, great community, flexibility, power, role-based user access, flexible content types, excellent taxonomy system, seo friendly urls, multi-db-support

To prevent quality images being stolen, we can use PHP to watermark web-images in popular formats like GIF/PNG/JPEG. We print a transparent gif-image on a jpeg-photo in this tutorial. For best results I prefer gif than png, because some png formats require extra functions to print a transparent image. We can convert this script to a batch-watermarker easily to watermark photo albums/galleries with multiple pictures by putting code in a loop or create a function.

Steps:

Webmasters want to know where all visitors coming from, which pages they visit and how long does it take webpages to load in miliseconds. This tutorial shows how to save your visitors/website details like referrer, browser/client, ip-address, langind-page in three steps. Remember if your scripts ends with exit() or die() command, footer code will not work. Just remove that commands or put them below footer code.

1. Create your mysql table
2. Add top-code
3. Add bottom-code

SQL Query

Now there are multiple captcha types against spam/abuse:

image captcha
ascii captcha
audio captcha
math captcha
easy questions

How will next generation captchas look like? I think in the future there will be much more captchas types like:

car captcha
film captcha
famous people
famous places
number to text
word suggestion with add remove extra letters(ie: gogle, new yoork)
animals (ie: which animals do you see in this picture from left to right)
traffic captcha

What do you think what more could be one of next spam-preventing technologies?

Here are examples of code how to redirect an old page/url/domain to a new one with most popular client+server side programming/scripting languages. We use 301 http status code (permanent redirect). If you need temporary redirection use 302 status code instead of 301. It is better to prefer server-side redirection, because some clients are surfing with javascript and http-refresh disabled browsers. Do not forget to test your code first!

.htacces and Mod_Rewrite (Apache Webserver)

Password Validation with PHP and Regular Expressions

What is a good password? Your birthday, favorite star or first school, car, ...? None of them, because all similar passwords are very easy to crack.

My golden rule for safe-passwords is simple: Google or any search engine should NOT find any result for your password-string. But do not search for your password without changing some characters, because it will be visible as clear-text to all networks between your pc and Google server.

GIMP for Windows
http://www.gimp.org
GIMP is the most popular open-source image editor for Unix/Linux. Windows users can use GIMP with installing GTK additionaly.

XnView
http://www.xnview.com

Twitter shows us that size matters, but shorter is better!

Its long time that many websites do not use .html like suffix. Remember spammer use longest urls with most important keywords. And many popular websites ie: Digg, Drupal, Twitter do not use www. in hostname(just Dmoz changed to www. in the last time). Web is getting mobile, also not everyone using internet with a full-keyboard, many users are getting information with cell-phones or similar small devices without a full-keyboard. Therefore it is getting more important to have short urls.

1. Brute force dedection should be enabled.
2. Cache directories should be secured.
3. Captcha's should be enabled and required for anonym users to avoid spam.
4. Code Injection should be prevented.
5. Cookies should NOT be used to store passwords and sensitive data.
6. CSRF should be prevented.
7. Directory listing should be disabled.

This is a list of best -most free- font sites for webdevelopers and screen/graphic designers. The list is sorted by popularity(Google-Pagerank and Alexa) and usability(easy to find/navigate, categories, tags, preview, download speed, less ads, friendly design etc). Most of sites have options for both Microsoft Windows and Apple Macintosh.

www.dafont.com