There is one little problem with free Webhosting, As you can see i have a banner above i can not remove, under that banner there is text that the search engine thinks is part of my website, When the search engine robot comes to a navigation page or a page with mostly graphics, it will take that text as my page's topic which is not really the case, and as you can see my ads are sponsored by google, partially due to the content of my website and mostly due to the banner text, most banner adds on my pages are for web hosting companies, that is because google sets the ads the way it sees my pages. But this is not really much of the problem. since if your page has enough content and well Meta Tagged, the weight of the adds is really small.