― Guest Post - Our host is John Reynolds, John has some tips for Bloggers using Pinterest.See How To Become a guest author on Spice Up Your Blog. ∙ Pinterest is quickly growing as a social network. The site is designed line an online pin board for the user. While it may have some perception as a craft, recipe, fashion, and vacation site, it is rapidly becoming much more. The site can make for a useful marketing tool for those who understand how to use it. ∙ Below are just five [...].