inventfilm

When importing your blog from blogger you may cause your posts to reappear as duplicates in your subscribers feed readers, unless you install this plugin and set the “Not Before” date to the day you switch.
This plugin works best if you have already been using feedburner to “burn” your feeds in blogger.
<h4>Why would I use this plugin?</h4>
If you are using blogger and feedburner, then after you import your posts into wordpress and change your feedburner “Original Feed”, your subscribers will see all your old posts reappear in their news readers as new unread posts. This plugin allows you to remove all those “old posts” from the rss feed which, after switched the feedburner feed source, will make the blogger to wordpress transition completely seamless.

RSS Not Before

RSS Not Before provides the ability to remove posts from the rss feeds prior to a given date.

espen

Based on a meta refresh tag on blogspot this plugin will redirect 
blogger permalinks to the correct wordpress post. Requires Blogger 
Redirector by Sam Wong 
(https://wordpress.org/extend/plugins/blogger-redirector/).
Why this in addition to the Blogger Redirector plugin?
Because Blogger changed the redirect for a custom domain and no longer 
returns a proper 301-redirect. Thus the only way now to redirect both 
visitors and search engines crawlers is to use a META refresh in 
blogspot.

Blogger Blogspot To WordPress Redirection

migration, pagerank, redirector
Requires at least: 2.0
Tested up to: 2.7
Stable tag: 1.0.1

Redirect permalinks from your old Blogger Blogspot to your …

RSS Not Before vs Blogger Blogspot To WordPress Redirection