#noonesearchesgooglewithhashtags despite what you may have heard. While #hashtags are certainly used to search social networks, especially Twitter, this is not the case with search engines. In truth, #noonesearchesgooglewithhashtags!
Hashtags are commonly used to “tag” a specific topic of discussion. This helps to keep everyone interested in a particular discussion involved, and can extend a conversation to thousands or hundreds of thousands of people. These are fantastic for that purpose; however, #noonesearchesgooglewithhashtags.
According to Wikipedia:
Hashtags are mostly used in unmoderated, ad hoc discussion forums; any combination of characters led by a hash symbol is a hashtag, and any hashtag, if promoted by enough individuals, can “trend” and attract more individual users to discussion. On Twitter, when a hashtag becomes extremely popular, it will appear in the “Trending Topics” area of a user’s homepage. The trending topics can be organized by geographic area or by all of Twitter. Hashtags are neither registered nor controlled by any one user or group of users. They cannot be “retired” from public usage, meaning that any given hashtag can theoretically be used in perpetuity. They do not contain any set definitions, meaning that a single hashtag can be used for any number of purposes, as chosen by those who make use of them.
Hashtags intended for discussion of a particular event tend to use an obscure wording to avoid being caught up with generic conversations on similar subjects, such as a cake festival using #cakefestival rather than simply #cake. However, this can also make it difficult for topics to become “trending topics” because people often use different spelling or words to refer to the same topic. In order for topics to trend, there has to be a consensus, whether silent or stated, that the hashtag refers to that specific topic.
Hashtags also function as beacons in order for users to find and “follow” (subscribe) or “list” (organize into public contact lists) other users of similar interest.
While some “real time aggregators” which collect trending topics do often use hashtags in search, users simply do not do this commonly on major search engines such as Google. In truth, #noonesearchesgooglewithhashtags.