Is there any one like SEO? smile I have some ideas and did them.
Please give your comments if you like them.

Clean URL

I hate this one:
http://www.nguoianphu.com/index.php?u=category/news-and-announcements
But I like this:
http://www.nguoianphu.com/category/news-and-announcements
Debug mode

We should turn off the debug mode in the index.php when run a online forum.

ALTs for images

Go to view a user profile
http://codologic.com/forum/index.php?u=/user/profile/5770

<img  src="http://codologic.com/forum/sites/default/assets/img/profiles/icons/N_734939.png" />

It should has alt="username"

<img  src="http://codologic.com/forum/sites/default/assets/img/profiles/icons/N_734939.png" alt="nguoianphu" />

Sitemap.xml generator

Do you like it?

Start crawling your website ...
Crawling ...
It may take a long time. Please wait ...
Crawled: http://www.nguoianphu.com/index.php
...
...
Openning /public_html/sitemap.xml
Created /public_html/sitemap.xml
Crawled and Created sitemap.xml
Pinging sitemap to Google, Bing, Yandex ...
Pinging Google ...
Pinging Bing ...
Pinging Yandex ...
Done