This is an important quote, from a Protestant source, which accurately describes the historical situation in which the acceptance of the Canon took place.
Folks seem to subconciously forget that there was no fax machines, printing presses, express mail back then, and that therefore the circulation of the different writings varied in time and space. Some were more frequently copied and more widely circulated at an earlier date (ie Paul's epistles), while some writings had a more limited area of circulation earlier on (the general epistles). This difference contributed to the early lack of consensus for the 'disputed writings', for at the same time these began to circulate out of the areas in which they were initially received, other spurious writings (claiming apostolic authorship but which promoted heresy) also began to be circulating. Thus local congregations, previously unfamiliar with the 'disputed (but ultimately canonical) writings, were naturally hesitant in accepting these since there were many other writings that were by this time falsely claiming apostolic authorship (Gospel of Thomas, et al) but were patient of gnosticism.
Again, even during the time of the Apostles, their writtings were being passed away and received as inspired books, on par wit the already established OT canon of books!
the books that became known as the Canon were pretty much being used and agreed upon by churches soon after the Apsotolic Age ended!