I'm filling out a form with information about my publications, and one of the fields is "Type of Journal." I'm not sure what this means, except that SCI and EI are possible values. I'm guessing the former refers to Science Citation Index, but I can't find what EI is. It seems this is something they are expecting me to know so I can only assume it is common knowledge among academics.
What are the possible types for a journal (if a comprehensive list exists), and most importantly, for any given journal how do I find its type?