Facebook is the most popular one, but Twitter and linkedin are good as well. To grow your business, you have to deal with different social media websites to reach a wide range of users.
If SEO provider provides you with URLs, so it is okay. But if you don not have information about the whole process, I would suggest you to not try that.
Guest blogging is absolutely an effective way of online marketing but keep in mind you have to submit quality content in blogs that are related to your business.
There is no number or limitation on per day bookmarking submissions but I would recommend 15-20 a day. Try to use homepage of your website as well as inner pages.
It depends on the SEO company itself. You may find companies which offer expensive writing services but not effective. So you should think first what you want, i mean you need writing services per hour or per project or per month.
Using Youtube For Increasing Website Traffic
You have to create a channel which will contain all video tutorials related to your website, these videos should be high quality. There is also an important thing which is linking your website to your Youtube channel by adding a Youtube button in...