Start from wordpress 2.5 process updte for plugin is very easy, in wordpress 2.6.1 its more easier.
Notification of new available plugin in the front of end user eye
See these screenshots :
1. Popup show up next to Plugins.
1 means only 1 plugin needed to upgrade.

2. Click link ‘upgrade automatically’.

3. Download and unpacking plus deactivating plugin in action.

4. Latest plugin version installed and ready to serve

Howto read sitemap content?
Well, every browser able to read xml sitemap
1. Get url sitemap
for example from iaji, copy url
http://iaji.net/sitemap.xml
2. Paste in browser and press enter
you’ll see the content of sitemap
Its no different between creating sitemap for blog or for website, You can use many service available on the net.
One of them is xml-sitemaps
The process is simple :
1. Visit http://xml-sitemaps.com
Enter domain that you wanna make sitemap for.

2. Please wait after click ‘Start’ button, generation in progress.

3. Process done, you can download created sitemap dan upload to your blog / website.
