Here is a quick plugin I wrote called Plugin Update Email Notifier, the basic function of this plugin is to send out daily/weekly/monthly notification to administrators if there are any new plugin updates available for their blogs.

The category excluder allows you to hide categories from archives, home section, RSS posts, RSS comments, search results, pages, single posts and even block categories from appearing in search engine results by blocking access to search robots.

Update May 24th 12:34 Am 2009: Release version 1.2, it fixes a issue users had with Cookies, this issue affected users and showed them a message that there were no subscribers even when there were subscribers who had not confirmed, thanks to @narayanah for pointing this issue to me.
Minor Update Released at May 23rd 2009 [...]

Quite sometime back I had released the Feed Pauser WordPress plugin which allowed blog publishers to delay publishing the posts from reaching feed readers, the delay could be set to a few minutes or a couple of hours, this was to ensure that you had done all the checks and made sure the feed was [...]