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For your own primary website, I always recommend using a popular TLD domain. But if your purpose is networking and backlinks, sites like blogspot and weebly offer many advantages. Because of the strength of their root domain, it is easier to build page authority for a blog. You can get link diversity and high page authority in one fell swoop.  You can benefit from the way those blogspot blogs link to each other.

Hi Donna, Thankyou so much for your reply.