I think, no matter where you advertise, your ad must be short, clear and attractive. Link form that ad could lead to your blog or to your gateway. That is a place for lengthy, detailed information. If you put all that on your ad, that will not be attractive, it will be to long. First ad must be good idea in short and attractive form. When you have an attention of person who is looking at your ad he will go after your link to your gateway or blog for more information.