The 49 million loanable items (books, DVDs, CDs, audiobooks) are centralized in one online catalog system called MelCat (Michigan electronic library catalog).

There are also lessons and practice exams to learn Spanish and English as a second language.

MeL also has a section geared to the entrepreneur that will furnish legal forms, demographic information, and mailing lists.

The cataloged 49,346,993 items loaned between the libraries are books, DVDs, CDs, and audiobooks.

[2] As of 2022[update], MeLCat has fulfilled over 10 million requests for interlibrary loan items.