One of my friend said, if we add adsense in blogspot they will deduct a huge amount. is it true? which is the better option our own domain or blogspot? I want earn some money without any expense, so blogspot is a good option. there is no any domain charges, hosting charges. what do you think?
I think this issue was raised before long time ago and there was actually a detailed blog post written on it. Nope, as far as I know, there is no deductions whatsoever.
While my understanding is that there is no deduction, I'd still recommend setting up your own blogging environment with a real domain if at all possible. This is, of course, if you're trying to grow a community of your own or build a network of sites. Especially if you end up going with a VPS setup, this will provide a lot of flexibility that you can't get otherwise (additional software and sites hosted on the same server).
There's no such thing as google will deduct your earnings just because you use free hosting. It depends on niche.
There is no deduction on blogspot i think blogger is the best for starting your earning without giving a anything.
this is not true, because first bloger get a lot of traffic from google and also google try to motivate people to use bloger instead of other blogs