Would this be classed as a dodgy backlinking? - Important
-
What is the thoughts on the following?
Does it look dodgy to you? Is there any SEO value?
1. Social Bookmarking
2. Reddit Sharing
3. Stumbleupon Sharing
4. Profile Creation
5. PPT Submission
6. PPT Promotion
7. Blog Submission
8. Blog Promotion -
I can't see content creation on the list (that is what you really want to target) and marketing that content. Obviously, there many many many more aspects to implement on-site and off-site when doing SEO.
With those you have listed I would be careful and wouldn't overuse them.
-
I'd be pretty careful using these. Whether or not they're _always _dodgy, they don't generally result in "earned" links, and those are the kind you want.
Check out the Beginner's Guide to Link Building for some sustainable ideas.

-
There is some level of SEO value to be had from these but as the other comments have touched on, they're not necessarily the best ways to go about it.
Done correctly, each of these methods are perfectly fine, just make sure you're doing it for the right reasons. For example, don't just start dumping links all over Reddit and play the numbers game. You risk getting banned but more importantly, the best you can hope for is a negative association with your brand name.
On the other hand, if you have a resource that is very relevant to a particular topic then by all means, link to it. As an example, if you find a thread looking for specific data on a topic and you happen to have a (quality!) infographic that addresses the query perfectly, you're going to genuinely help answer the question and this is the key factor.
Also, each of these should be used sparingly. If 80% of your link profile consists of Stumbleupon links, you're not going to gain all that much strength.