Using Tumblr, Pinterest, Reddit for traffic?

Absolutely! Without question!
An absolute "no brainer"!

If you can get traffic, and it's free and ethical, take it.

Tumblr, Pinterest, and Reddit are all excellent traffic sources. You just need to figure out how best to use them and for what.

1. Jump on tumblr and do a search for your specific niche, tag or keyword

2. Open the "note" button on the most appropriate post and begin following those within that list.

The idea here is that you are following targeted people relative to your niche and they will usually follow you back. Around 1 in 10.

If they have rebloged the post where you found them and you post similar content they are likely to reblog or like your post too.

Tumblr allows 200 follows a day so start following 200 targeted people relative to your niche until you reach the maximum of 5000. This will optimise the probability of your posts being liked and reshared.

If you have reached the maximum follow limit for the day and you want to keep going just start liking post relative to your inch, especially those with lower notes as they are starting like your self and will likely follow you.

Also add #followback tags to some posts, just to some. You don't want to appear too needy!

The same strategy can be implemented for pinterest etc.

They're all good, but take work.

I have the most success with Facebook, but post the same Facebook posts to pinterest and tumblr since it only takes an extra minute.

Social media is a long term strategy that costs more in time and/or money up front, but can pay off nicely once you get followers and figure out how to generate traffic from each social channel. Once you have huge followings, it's traffic on demand. You can also sell posts and pins to advertisers once you have enough followers.

How can we get traffic from these websites?

DEFINITELY IT'LL HELP!
Our company has started to be socially active. Thus, we've made a decision of being 'socially capable' of doing 'social' like in Tumblr, Pinterest.

Just check this out for its value: pinterest marketing | Social Media Examiner

How to Use Tumblr for Marketing

http://www.business2community.com/di...e-work-0775848

Hope this can help.

Yes these website are best for getting the traffic.

For traffic, yes. Backlinks? Not directly.

Start with Pinterest for Business. Don't follow more than 300 per day. I would keep it to 200 to be safe. You will get more followers by posting engaging content, anyway. I wouldn't bother with Tumblr, but that's just me. Twitter is also viable if you know how to build a real following. I'm not crazy about Facebook, but it works if you can grow an active group.

I think these are effective source for getting traffic. I have already used them to get traffic. So you can also use them.

Tumblr, Pinterest and Reddit are great sites to drive traffic. I found Pinterest is best.