I have 4 wordpress blogs and would like to make blog #5 a auto updating blog of my rss's of the other 4 blogs, so it would be an index of all my posts on all blogs. I am having trouble finding this plugin... is it out there? Thanks, Mike
Merge your feeds using feedcombine.co.uk or feedjumbler.com and then import this feed into your new site (which doesn't have to be a blog, it can just be one page that reads this rss feed).
use http://www.devplug.net/smartrss-plugin/ then apply a cron job to update every so often good luck bro.
here one more plugin for wordpress with cronjob http://devthought.com/wp-o-matic-the-wordpress-rss-agreggator/ I hope this will help you