You can get your existing subscribers to recommend your E-zine, blog or website to their friends and colleagues. Their third party endorsement is worth more than all the bragging you can do about yourself. You make it easy on people to recommend you by giving them a website form to do it.
You can try: http://www.willmaster.com
Here's an example of an old recommend form still available at
http://www.antion.com/recommend.html
You can use a version that pops back up already filled in so that the person can easily recommend you to several different colleagues. All they have to do is fill in the name of the new person to whom they are recommending you and hit submit. You can get a lot more recommendations by making it easy for the people visiting your site. The marketing tip here is that to get people to take their time to recommend you, you need to do two things.
1. Your material has to be good so they won't be embarrassed to recommend you and
2. Give them a reason why it will be good for them to do it.
If you want someone to help you, it is always a good idea to give them an incentive. Tell the people that you want to help "you" that you have a way to help "them" keep in touch with their clients and friends. You probably have heard of the marketing ploy of cutting out an article from a periodical and sending it to a client. The article, of course, is helpful to the client and you don't appear to be marketing at all.
It's just a nice thing to do for your client, but, of course, it is keeping your name in front of them. The article idea is a classic and certainly a very good idea, but it is quite a hassle. You have to cut the article out of the periodical, write a note, find the client's address, make a label, get postage, etc., etc., etc.
Tell them if they simply type a quick note into your recommend form and ship it off to their client via email, they have no hassle at all. One public speaker got about 150 new subscribers the first time they sent this idea out to their mailing list by giving them an easy way to help their client by recommending them.