If i post a book just on Lulu.com, can i later have it able to be bought on other websites, Amazon, Barnes & Noble, etc...?
Yes you can. But to be included in Global distribution you'll need to add ISBN's to the book if you didn't already. Free ones are given here if you want and you'll have to purchase a proof and then ok the book before it can be listed on Amazon etc. It takes 2 to 6 weeks for it to appear on other sites. My experience so far is about 2 weeks for Amazon to have it. Good luck.
Ok, thank you.
You're more than welcome