It seems that as an instrumentation engineer, I have a thing for automation and measurement web sites.
I ran into http://globalautomation.info/ through its creator's profile on facebook.
it seems that he's an instrumentation engineer located in India. He calls himself simply "Instrumentation Engineer".
For beginners, you can enjoy the wealth of tutorials this website provides.
And there is a bunch of pdf's that are free to download in both the Downloads, and the Tutorials section.
It also has a corner for job openings in the instrumentation field, a ranking for the top instrumentation companies, a ticker for the industry's news, and a link to a blog managed by the site's creator.
I'd say it is a simple and useful site. I hope you'll like it.