If you are moving Blog, changing pemalinks/URLs on WordPress blog, you need a plugin that can simplify adding redirections. Redirection plugin can really simplify the redirecting Blog posts and pages.
There are few features that make this plugin really powerful. The plugin can automatically add 301 redirect, if post’s URL changes. The plugin also reports 404 errors and generates feed for the 404 errors for easy monitoring. This way you can track any URL not redirected and redirect them.