This is a personal project that hopefully will get traction and the actual increase in usage will allow the system to learn and be more effective. The technology uses semantic analysis.
Cuéntanos a qué tipo de público quieres llegar
For small businesses or brands that are currently using twitter to generate social media. Objective is to increase virality of tweets by suggesting a hashtag that will increase the amount of eyeballs that will see that tweet.
None really, go wild. There is one suggestion: use the # (hash) symbol. Ignore the .com part of the brand.