It's the medium that counts

What do you call somebody who indexes stuff?
Nah, not archivist or librarian, Digital Preservation Officer, apparently.
Now there's the job for La Lobster what with all her digits an' all.
(She didn't tell you she was doing some indexing did she? - Did you work it out?)
Read all about it - it's a 'new' role apparently. (La Lobster thinks not.)