Just wondering what you guys think? Is it better to start from scratch and make a forum, blog, or information site, then sell it for pure profit, or do you prefer to buy an already created site, do SEO, build up revenue and then sell? Just curious.

i like to start them up :D

if you have the money to buy them, i would buy and continue from there..

that's a hard question...depends from what perspective you're looking at it.

If you are a newbie I would recommend starting from scratch because:
1) you gain far more experience than by buying an already established website. You'll also learn the value put into creating a website by your own which will help you with pricing your sites and also when buying other websites.
2) less expensive => less risks in case something doesn't goes as planned. Be prepared for not finding a buyer or if you do, he'll offer you a lower amount compared to what you initially though you'll get etc.
The only obvious disadvantage that I see is that you won't be able to turn the website very fast into making money and then sell it as it requires time to gain traffic, rankings, trust etc.

Of course, if you buy an already established website, do some tweaking, and you can try to sell it for a profit in very short time compared to starting a website from scratch. But you won't gain anywhere near the same experience during the process.

My advice is to start from scratch with a few websites and once you gain more experience you could try to buy&sell, aka flipping.

I have seen examples of brand new blogs being flipped for instant profit. It is worth hanging out on a site like Flippa.com and seeing what is selling and for how much.

I agree with niven, if you do have the money you might as well just buy a site. All you need to do is enhanced the site and create more followers. You won't have a hard time building and marketing since they already have followers unlike starting from scratch.