I created a Plugin for this very purpose a couple of months ago! 🙂
You can add text/html to any part of your site, not just sidebar widgets, via a shortcode. You can then update this content on the Plugin options page and your main site content will also be updated.
It is called Contemplate, which stands for [Con]tent + [Template], and you can download it here:
http://wordpress.org/extend/plugins/contemplate/
Let me know what you think!
Thank you very much perthmetro and dgwyer both plug-ins are working perfect
@dgwyer its work only my post and pages area how about index.php
Normally you can only use shortcodes in post/page content, but there is also a way you can use them more generically in theme template files too using the do_shortcode() function. See here for more details:
http://sillybean.net/wordpress/using-shortcodes-everywhere/
To use the Contemplate Plugin shortcode on your index.php theme template try the following:
do_shortcode(‘[contemplate1]’);
Just make sure the ‘contemplate1’ text points to the correct shortcode.
now working perfect
Thank you very much for you big help dgwyer 🙂
Glad it worked for you! 🙂