You supplied us with a bith too less data
Bassicly what you need to think about.
How much could i make on advertising? Well probably not that fantastic. Maybe 5$ per 1000 pageloads(the 5$ is a quess and it can differ quite a lot depending on your site. I've had them as high as 9$ but i also had very low ones of about 1$)
And then think how much you can make selling the ebooks. The first thing you notice is that ebooks have a very high profit per sale. If your content is indeed very wanted this would mean you would have funds to advertise.. affiliate.. newsletter affiliates.
But that all depends on how wanted it is. But the high profit per sale allows you to do a lot of marketing. Whilzst having a site will tie you up pretty bad.
Also a very important thing to consider. Are any other people already offering this information. Are they offering on a website or as an ebook. Chances are your sales whil be not that great if somebody else is offering it for free on its website.
If you can get away asking money for your ebook go right ahead and do it
