microkid

<p>If you just migrated your WordPress blog from one permalink structure to another, and you don’t want to lose Pagerank or traffic that accesses your blog through the old permalinks, this is for you.</p>
<p>Right before the old permalink generates a 404, this simple plugin grabs the slug from the end of the request and checks if there’s a post with this slug living somewhere else on your blog. If so, it will generate a “301 Moved Permanently” error, which automatically forwards your visitor (and Googlebot) to the new location of your post. It’s simple, but effective. No configuration options, just plug and play.</p>
<h3>Support</h3>
<p>This plugin is in active development. All feedback is welcome on <a href="http://www.microkid.net/wordpress/permalinks-moved-permanently/" title="Wordpress plugin: Permalinks Moved Permanently" rel="nofollow ugc">the plugins homepage</a>.</p>


Permalinks Moved Permanently

If you just migrated your Wordpress blog from one permalink structure to another, and you don't want to lose Pagerank or traffic that accesses yo …

chrisnowak

<p>We do a lot of WordPress installs for clients when we set up new websites for them. One hassle we always go through is setting up the development site as a sub-domain or as a complete other domain, and then having to move it to the new domain. Since WordPress uses absolute URLs in posts, links, etc., editing by hand is definitely not an option. We also couldn’t find a really good solution, so I wrote a plugin that will go through all of your posts, pages, options and guids and update your old domain to your new domain!</p>


Change WP URL

Use this only if you're trying to move your WordPress install to another domain.

Permalinks Moved Permanently vs Change WP URL