My blog http://cijo.i.ph/ had 94 cached pages but now all the cache pages seems to be removed. Can anyone say what might be the reason? My blog is still having PR 2. I had good SERP for a lot of terms. Is this done by some of the competitors ? How can I re-index the blog in Google ? Update: Homepage is not cached now while some inner pages are still cached.
It looks like you have a major duplicate content issue. It seems that all of your posts are accessible via http://cijo.i.ph/ and via http://cijo.i.ph/blogs/cijo/ You do have pages indexed though. So you are definitely not banned. You may just have to sort out issues like this.
I think you have found out a major issue. Yes http://cijo.i.ph/ has PR 2 and http://cijo.i.ph/blogs/cijo/ has no PR so I think google considers both as different pages but I have heard duplicate content on same domain is not an issue. Hope someone else can clarify this.