404

I tried rebuilding the site map as someone here suggested but no dice. Dear owner or webmaster of http://mysite.com/ While crawling your site, we have noticed an increase in the number of transient soft 404 errors around 2012-05-27 06:00 UTC (London, Dublin, Edinburgh). Your site may have...

so I've got a problem with my feed. Today I checked out webmaster tools and saw that there was crawl error with /feed and /comments/feed checked out with browser but it doesn't open, so what am I supposed to do??:(

I have an auto-blog that is basically a news aggregate. I had around 30,000 posts and about 5,000 tags which caused my plug-ins and server to begin having issues. I decided to just keep the posts from the last 45 days as well as tags that were used more than 5 times and delete the rest. I was...

Hi, I've never used wp-o-matic before but I seem to have everything set up ok, as it fetched post from different feeds and they look great on my homepage. However, when I click the link to go to the page of ANY post I get a 404 error? What is this? I only have wp-o-matic and platinum seo setup...

So Yahoo and MSN both index a page on my site but google will not. I have their webmaster tools and they give a 404 error. The page is there, this page brings the most traffic to my site and it is very frusterating. How do I fix this? I have resubmitted the link and sitemap.