If you don't have a blog or website already, you may want to consider creating one with a blog. If you would like a blog type website like blog.Gadviser.com, there are free blogging sites where you can quickly and easily create a blog hosted online with no software or monthly fees.
Probably the two biggest online free blog hosts are Blogspot.com or Wordpress.com. Both services are free to use but they're limited. For example, Wordpress.com will not allow you to put any advertising on your blog. However, this is a great way to get your feet wet and see if blogging is right for you. Blogspot.com will let you put ads on your blog and since they're owned by Google, they have integrated AdSense to help you monetize your site if that's something you're interested in. For most people either solution offers plenty of flexibility in content and appearance to get you started.
If you use Blogger.com, you can point your blog to your domain. If you don't have a domain, I register most of my domain names at GoDaddy.com. They're the biggest domain name company in the world. Google has also integrated Blogger into their Google Apps service for Business (that's what I do).
There are several other blog hosts around but I'd stick with one of the two above.
Stay tuned and I'll show you how I use my blog G Adviser Blog to create an automatic newsletter from the blog posts.
If you have regular information to share a blog can be a more permanent way of sharing information then a social media post or tweet. May be best to do all three.