Disk spaceSize of a disk space depends on the material you want to publish. A lot of disk space take media files. For example one minute audio with more or less acceptable quality ( the better sound quality the larger audio file ) takes about 200 KB. So 25 MB disk can keep (highly approximately) up to 2 hours audio. Video files are much larger. One minute of low quality small video takes about 5 to 7 MB. So, if you want to use video please order custom account.
25 MB
50 MB
100 MB
Data transferTwo parameters should be taken into account: size of your materials and number students who work with the materials. Every time when student listens audio from your web site he or she produces data traffic equal to the size of the audio file. So when 20 students working on the same material listen 50 KB audio file, it produces 1 MB data traffic. (Fortunately, modern browsers keep a lot of data including some media files in the local cash memory and if user request the same file again, browser load it from the memory rather then Internet, saving time for user and traffic for us. But it much depend on media format and browser configuration.). Please look into our "Support" section where we demonstrate how to create medium-level quality small size audio and graphical files. So, if you don’t use large audio files or you don’t expect many visitors, take 250 MB option, otherwise take 750 MB or 1500 MB option. If you plan to use video please order custom account. (monthly)
250 MB
750 MB
1500 MB
E-mail accountYou can order e-mail box: account_name@eslinstructor.net ( for example: johnsmith@eslinstructor.net ) This is web-based service. To access an e-mail box user should open http://mail.eslinstructor.net web page and enter his/her account name and password. This e-mail account is especially useful for Online-Test developers, who want to separate their regular mail and tests reports.
Technologies 
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