http://labs.yahoo.com http://research.microsoft.com http://research.google.com
http://labs.yahoo.com http://research.microsoft.com http://research.google.com
The research talks are also worth checking out: http://research.microsoft.com/apps/catalog/default.aspx?t=vi...
The latest talks range from "Culture differences between US and China" to "Distributed Optimization via Alternating Direction Method of Multipliers".
Not sure if I saw an old page, or if something has changed in the past couple of weeks, or what, but at least for now, it appears that a significant body of IBM research material is still freely available.
And to make it even more confusing, I now see that some links from http://researchweb.watson.ibm.com/journal/ redirect to the IEEE site, but the actual article is still freely downloadable. Not sure how universal that is, as the article I was trying to access a couple of weeks ago, was very much not available for free (at the time). Weird. shrug
Tools like CiteSeerX can help you find archived copies of papers around the Internet, which may mean that you will not have to contend with paywalls at all to read the papers you want. For example, Tomasulo's famous paper about out-of-order execution originally published in the IBM J. Research has an entry here http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.129.... and you can note that it is available on several academics' personal sites, presumably uploaded originally for pedagogical purposes. As well, CiteSeerX keeps a cache of quite a few citations locally.