Hello I have an interesting Question. I write Blogs as usual and I give back link to my website. So i believe it helps in one way link, we all know. Now, I have blog on blogger, If i buy a domain from google for that blog, my blog becomes a website ( those who use blogger knows this well). The question is shall i buy domains for my blogs so my back links becomes stronger, or its ok to keep blog as simple like myblog.blogspot.com
It's not going to make your backlinks stronger. Page Rank makes them stronger. In terms of Page Rank, it seems like you have an advantage when using a .blogspot.com to get Page Rank. I have a site with less than 50 backlinks at PR2 on blogspot, compared to my other sites with nearly 1k backlinks and a PR2.