An instance of where it isn't the most relevant channel of advertising and marketing would certainly consist of organisations that have a very clearly defined list of target clients. For instance, if you only collaborate with governments/councils or hospitals in the UK. The 2nd is rankings, where a website turns up in a search. Third-party business such as Moz.com offer ranking information and can show just how those rankings transform with time. However it's also essential to have individuals to give that service or product to a consumer.