If you want some backlinks, you can also try those websites which have Google News Approval as those websites rank much faster in Google Search Results and will help you get more exposure as well. It is difficult to find one because not all allow users to publish their own content, but I have been using one such site thewiki Network for my clients.
You can add your links in bookmarks and write a summary about your link or article. Ensure that the content is of good quality and at least 600 words or else it might get moderated. Once done, your article might get indexed by Google much faster and your website can also get good exposure because of quick indexing, hence helping in increasing your organic traffic.
Having said that, you should keep on posting articles so that you can get more links for your website and also a flowing traffic from these websites to yours. Usually these communities are small but more engaged than a proper social media website.