I love it when conference proceedings are available online. The Pacific Northwest Software Quality Conference (PNSQC) has offered their proceedings online for some years. The 2008 proceedings are now available. However, on the page with the link to the proceedings, the following message is displayed:

Note: These proceedings will only be available for a short time to the general public. After this time, the proceedings and individual papers will be available for download by PNSQC members only (membership is free and requires registration on the website).

The current link, accessible to the public, can be found here.