I switched from Blogger to WordPress at the start of the year. I tried to keep the permalinks, the same, so I used the same structure as in Blogger. Some of the posts with long titles would have had their links change becuase Blogger limits the length of links, but WP doesn't. However, I'm sure there weren't enough changes of permalinks to drop the PR from 4 to 0. I have 936 links as indexed by Google (sorry, I don't have the preswitch number, but I'm sure it isn't much more than the low 1,000's.) Yahoo gave me 933 links. Now, I know that's lower than before. I was in the 2,000's or 3,000's. Is that just a natural fall for losing that many links, or is there something else behind it? Should I go back and try to fix as many permalinks as possible for the next update? For the record, the drop hasn't affected me in SERPS for my targeted keyword.
Even if your permalink structure has changed, i guess while making the WP switch you could have made 301 redirects to new permalink? Let me look around some blogs which lately migrated to WP. I was thinking to do the same sometime soon.
I didn't do that because I post every day, so I didn't think it would be a big enough problem to have to fix/redirect every link. With 300+ posts, it would have taken a while to look into that. I fixed the most popular links, but I guess I'll go do more now.
I guess while doing the switch its done automatically? Please check the procedure to migrate blogger blogs to WP. Am sure i read it that way
Err.. I think you maybe confused? Permalinks are your URL structure in either Blogger or Wordpress. What affects your Pagerank are the inbound links to your blog and NOT the permalinks. So if you switched from Blogger to Wordpress, you would've lost all the 'votes' that you received previously because the original links are still pointing to your Blogger site and not the new Wordpress one.
I think it's a duplicate content issue... Google never handles a switch very well... I had the same problem with one of my blogs... 6 months later it's still got no PR
The main in url link is lack of dynamic link (Links shoudn't be dynamic) Like http://www.sample.com/?id=1&page=1&dir=articles. the number of links in google changes all the time. try to create sitemap
It's not duplicate content. I deleted the old blog. I think the reason is my link profile cuz I exchanging links with a lot of off topic sites.
I did the same thing... trouble is google still has the old blog in it's index... takes a long time for google to realise the old blog is actually gone... an there is no way of telling google you've simply moved it...