404 is a Web page is displayed when readers hit the wrong link to the article, or that link is broken … it is generally error page of the blog. Blogging can not avoid even the smallest errors and page 404 is to inform readers know that link does not exist anymore, or has been changed …
To help readers have more choices and quickly find where they need to, a number of plugins have been designed specifically for this purpose. Optical Blogviet plugin directory look to see how much stuff like that and pick out 8 plugin appreciated to share with you.
This plugin has a common objective to help you edit and design a 404 page friendly and efficient.
This tool is very simple. It helps you have a page 'Page Not Found (404)' as you by automatically displaying links to the appropriate page based on keywords on a blog URL into the reader.
Detect and report all errors and let you know that corrected. However, if there are errors, you will be bobm mail as they had ever met, so that means that the installation has not ignored the problem.
This tool will search the posts, pages, tags and folders based on input from the readers. When all have found it appropriate to redirect the reader to show that instead of 404 pages.
This tool is good and like, i have used it
5. Dunstan style 404 error page
This tool can help create a 404 page interactive capabilities such as displaying recent posts, recent comments … …
This is quite a plugin or because it lists all kinds of errors on the blog and monitor it. After you've listed and monitored by the error, the tool will allow you to navigate them to the new location use the 301 redirect.
This is quite like the 404 Notifier because it lists the errors and send email notification to let you know about that adjustment accordingly.
This tool allows you to embed the Google search engine on the 404 pages easily. So, if you do not find all they need to find the right tool for readers looking for on page 404.
But many other plugins for the page 404, however maketip listed only a few would be appreciated for your reference when needed. You can download directly from the pages of the author or search by keyword in plugin directory offline.

9 Basic SEO Tips can not be ignored | Web Design and Blogger Tips on April 2, 2010
[...] We do not want this at all, but unavoidable errors when writing or editing blog. How to have a 404 page as you, you can use 8 WordPress Plugins Help Create Page 404 Friendly and Effective. [...]
Designi1 - 404 error page – what you should do about that? « on June 5, 2010
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