social media networks

How do social media networks like LinkedIn, Xing, and Viadeo differ from one another, and which one is best suited for professionals in different industries or geographic regions?

it will help in brand awareness

Not too sure which is effective for which. I can assume LinkedIn is pretty good for reaching a more Western audience though. For the rest, it might be a little trickier to find out. You can try and research publicly available information regarding viewership or volume of visits if they're logged per region. I can see how depending on your target demographic, your choice of platform may affect your growth and reach.

LinkedIn's network tool is recognized as a professional tool for marketing goods and services. Geographically, it is extremely widespread in western regions.

LinkedIn is the most recognised from the three and you can use it for business or employment reasons.