Your blog used to have great explanation of the questions and solutions. I am unable to find it anymore. Did you removed them? Is the blog archieved somewhere? Can we have access that? Is it possible to bring it back?
No, it is not removed. It is all migrated to http://articles.leetcode.com/.
All old links will automatically be redirected to articles.leetcode.com, for example: http://leetcode.com/2011/11/longest-palindromic-substring-part-ii.html
If you are not able to access it now, please be patient as it takes some time for the DNS propagation to take effect. It should take effect within 24 hours. Thanks.