The Blogdigger feed was not updating properly, and it has been deleted.
I’ve created a MySyndicaat Feedbot feed to replace it. The aggregate feed provides recent postings for the current week for selected Weblogs and other sources (currently 14 sources). The Open Access Update page’s feed has been switched to the MySyndicaat feed and the number of possible postings increased to 50. The MySyndicaat Feedbot Web page is now available as well.
Although the MySyndicaat Feedbot is set to the shortest update cycle, keep in mind that there are bound to be some feed update delays.