Aside from the fact that any idiot can set up a web-site as evidenced by this blog, probably the most common problem when using the internet for research for HWK or extra reading is that there is simply too much stuff and a lot of it is complete nonsense.
If you are searching for articles or web-sites for your Geography research then try intute which is a specific educational search engine which will help remove a lot of the gumpf from normal searches.
To labour a point, a search for “population policies” on intute gives you 47 educational websites the same search on google gives you 28,000,000 web-sites! Need I say more. Give it a go.