articlealley. com27. articlesbd. com/28. evancarmichael. com29. References:Mandel, C 2008, Form your own online community, Microsoft Home Magazine, viewed 12 April 2010, hite, N 2006, Blogs and Community – launching a brand new paradigm for online community?, case look at answer Knowledge Tree, viewed 12 April 2010, 2%80%93 launching a new paradigm for online communityBlogs could be categorized into different categories, in line with case study solution content of case examine solution blog, or field be counted, equivalent to:FoodTechnologiesEducationPersonalMusicPoliticsGamingSketchFashionSource: Fagstein, 2008Vlog is also a blog but uses video recording method rather than case look at answer written word for post entries articlealley. com, 2010. The clients record and add a video to sure video internet sites, comparable to YouTube. com and Tudou. com. Some different forms of blogs are linklog, sketchblog, photoblog, Phlog and moblog Revell, 2009. Threats of Substitutes Identifying substitute merchandise/services is a question of attempting to find other products/facilities that may perform case look at solution same functions as case examine solution product/facilities of case look at solution industry Buzzell, R. D, 1966. In case examine answer case of Modern Circus industry, case study answer substitute is limited or low. Modern Circus has founded case look at answer area of interest industry demand for a completely specializes product or commodity of live amusement combined with inventive innovative displays that prevented laud heritage song, which was utilized by case study answer traditional circus. Traditional circus could not alternative Modern Circus, because of case look at solution product differentiation. Modern Circus deliver an improved and sudden shows to case study solution public and clients are less doubtless in finding comparable reasons to satisfy their wishes as opposed to basic circus.