Centralized application systems: more consolidation

One of the ways the internet is changing job markets has to do with making it easier to transmit job market materials. (This becomes even more important as the internet makes it easier for job candidates to apply to a larger number of jobs.) Competing services have sprung up to serve this need, and as the market matures we are starting to see some consolidation.

In the humanities, Interfolio seems to be consolidating its position, with a recent endorsement from the Modern Language Association, which will integrate the service with its Job Information List:
 Dossier and Search-Management Services Available through the JIL

"Job seekers will be able to apply for positions directly from advertisements in the JIL by creating a free Interfolio account
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"All departments that place ads in the 2012–13 JIL will be able to use Interfolio’s suite of online search-management tools, called ByCommittee. ByCommittee provides a single secure Web interface for departments to manage search-committee memberships for multiple searches and to receive candidate applications, dossiers, and other materials."
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"Letter writers receive requests for letters directly from a candidate’s Interfolio account and submit their letters to Interfolio’s centralized dossier service."
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In Economics, some preliminary discussions have taken place about the possibility of a similar kind of integration between the job listing service Job Openings for Economists (JOE) and the application-materials aggregator Econjobmarket.org. but it remains for at least another year to see whether these discussions will be fruitful.
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Previous related posts:
Academic letters of reference;

Consolidation and competition among economics jobs aggregators