Back in mid-November, I did a survey of 100 randomly selected articles, and re-checked them towards the end of February: http://en.wikipedia.org/wiki/User:Carnildo/The_100. I've now finished my second check of those articles. The seven deleted articles are still deleted, and the three redirects are still redirects.
Over the past three months, 868 edits were made to articles on the list, giving a mean of 9.33 edits per article. The lower edit rate could be explained by the time periods not being exactly three months: the first was about a week and a half longer, while this one was a week and a half shorter.
Many of the articles were unchanged since February: 23 articles had zero edits, with three of them having not been edited since before last November. 19 articles had ten or more edits, encompassing 80% of all edits. The ratio of trivial edits to major edits remains roughly the same, at around 99% trivial.
At the other extreme, six articles had 50 or more edits, with one article ([[Lawrenceville School]]) having over a hundred. Number of edits continues to not correlate with improvement, with only one of the most-edited articles showing significant improvment.
Overall coverage is mostly unchanged, with [[CBS Columbia Square]]'s improvement from "stub" to "good" being the only major improvement. A few other articles added a paragraph or two, but not enough to promote them to a higher level.
Two articles lost significant ground in terms of quality: [[Padstow, New South Wales]] added five paragraphs of information, but wikification was removed from much of the existing article in the process. [[Etham]] lost a paragraph.
Sourcing of articles has improved slightly: two articles gained sources, for a total of 17 out of 85 articles having sources. The total number of sources has increased significantly, with 54 sources cited. [[General Semantics]] has continued to acquire sources, with 27 being cited, up from 17 the last time I checked.
The image situation has continued on its previous trend: the ratio of free to non-free images remains roughly 2:1, with the addition of five free images and five non-free images, and the removal of four non-free images. 16 of the previous 17 dubious free-license images have been deleted.