Several WebmasterWorld members report conducting a search on a keyword phrase at Google.com and being presented with results in the form of URLs only, for all 10 results. This is not just reported for one obscure query, but several other forum members have seen this happen also over the past couple days for all types of queries.
I personally have not seen this happen when I search at Google.
Senior Member jimbeetle said:
I ran into this the other day and boy, it was really freaky. A couple of searches returned all url only results. A couple of searches returned 6 or 7 regular results, then url only after that (I have my prefs set to 20 results).
Forum discussion at WebmasterWorld.