good ways of searching

Google scholar
"Google Scholar provides a simple way to broadly search for scholarly literature. From one place, you can search across many disciplines and sources: peer-reviewed papers, theses, books, abstracts and articles, from academic publishers, professional societies, preprint repositories, universities and other scholarly organizations. Google Scholar helps you identify the most relevant research across the world of scholarly research."
Features of Google Scholar
- Search diverse sources from one convenient place
- Find papers, abstracts and citations
- Locate the complete paper through your library or on the web
- Learn about key papers in any area of research
(http://scholar.google.com/intl/en/scholar/about.html)

Peer reviewed journals
"Peer review (also known as refereeing) is the process of subjecting an author's scholarly work, research or ideas to the scrutiny of others who are experts in the same field. Peer review requires a community of experts in a given (and often narrowly defined) field, who are qualified and able to perform impartial review. Impartial review, especially of work in less narrowly defined or inter-disciplinary fields, may be difficult to accomplish; and the significance (good or bad) of an idea may never be widely appreciated among its contemporaries. Although generally considered essential to academic quality, peer review has been criticized as ineffective, slow, and misunderstood"
(http://en.wikipedia.org/wiki/Peer_review)

Intute
"Intute is a free Web service aimed at students, teachers, and researchers in UK further education and higher education. Intute provides access to online resources, via a large database of resources. Each resource is reviewed by an academic specialist in the subject, who writes a short review of between 100 to 200 words, and describes via various metadata fields (such as which subject discipline(s) it will be useful to) what type of resource it is, who created it, who its intended audience is, what time-period or geographical area the resource covers, and so on. In early June 2008 Intute provided 123,381 records. Intute is not to be confused with a simple search engine - it is more like a hand-built directory of 'the best-of-the-web, for academics'."
(http://en.wikipedia.org/wiki/Intute)
Link to intute: http://www.intute.ac.uk/

I think the websites which trend to be reliable are university websites and websites that end with .org, .gov and .ac.uk
Also, when read some articles on the internet and they give references. We should go to look at the sources that they have given as well.

For me I've never used google scholar or intute before. I think this will help me to find information which relate to my subject quicker. Also the information that I will get from these sources are more correct and viewed with specialists before they allow to public.