A blog is short for weblog and it's in actuality, an online journal. Blogs can be stand alone websites or can be incorporated into your website with its own page.
2)Newsletters or eZines
Having a newsletter or eZine (electronic magazine) is a great way to stay in contact with your clients and potential clients. A newsletter is one of those products you can offer for free to entice casual browsers to give you their name and email address. Some people argue that newsletters are no longer useful but I disagree. While some people are overrun with newsletters that hardly ever get read, for the amount of work it takes to put one together, it is worth the potential audiences you will reach.
The sales funnel is a metaphor for the way your bring clients to increasingly higher levels of commitment in their buying cycle. The idea is that all your potential clients will enter the mouth of the funnel by agreeing to give you their name and email address. Then, the concept is that you create increasingly more expensive products and attempt to move your customers through your sales funnel progressively by offering them the next product.