I am currently looking in the possibility to use twitter for a specific project as a way to reach a potentially large audience. The tweets will be about a broad range of topics and not everyone will be interested to receive all tweets.
Twitter offers the option to create lists in which you can group specific users in order to group incoming tweets about specific subjects in their own list. Lists can be followed by interested other members. Such a grouping for outgoing tweets would be ideal for my project, but twitter doesn't seem to have an option to organize outgoing tweets the way it allows to organize incoming tweets. The only solution I have found so far is to create a twitter account for every single topic. But in this specific case that would mean the creation of several hundred twitter accounts.
Is there a more elegant way for structuring the outgoing tweet stream?
One good way to find out the best hashtags is to start searching and monitoring. That will help you to see some of the people following those keywords. Start following those people, and build lists using those main keywords. Try putting the keywords into categories. eg.
red apples will go in the same category as green apples, but won't go in the same category as bananas. HTH
For this situation people are already connected with a project and the idea is to use twitter as a non-intrusive way to let them receive updates for the project.
The problem is that many tweets will be ignored by default by the receivers. For example, the tweets will be in multiple languages. Someone from Germany will only be interested in the German language tweets, maybe the English languages ones but certainly not in the tweets in Chinese, Arabic or Russian. Besides the language, tweets will be about different topics and in general most people will only be interested in listening to tweets from one or a few topics.
My idea was to let people subscribe to lists like @project/de-topic1 for the German tweets about topic 1, @project/en-topic3 for the English tweets about topic3 etc. But unfortunately this doesn't seem possible with twitter.
The only other option I have currently found is using RSS feeds which can be fully user customized, but that requires the use of an RSS reader at the user's end.