I would like to begin offering press releases to my clients. Therefore I need a monthly subscription/annual membership which allows me to send out as many press releases as I can have written. Please provide any comments on these services including how wide of a distribution and linkbacks I could expect. If you have any other similar services also please provide them. The best options I have found so far are: 1) http://pro.clickpress.com/ 2) http://www.i-newswire.com/ 3) http://www.ereleases.com/ Thanks!