Aggregating blogs from different multi-site blogs

https://wordpress.stackexchange.com/questions/9532/aggregate-summaries-of-posts-of-different-blogs-in-multisite-instance

https://www.ads-software.com/extend/plugins/wordpress-mu-sitewide-tags/

Thanks for the pointers! Both are very useful, but MU Sitewide Tags would work better for what I am trying to do now.

I tried both the plugins.

1) Diamond MultiSite Widgets seem to work fine.

2) I am still trying to figure out what is going on with the WordPress MU Sitewide Tags. I installed it and called the new blog”all”. I checked “All blogs” to import from. But I am seeing posts being imported from only *one* of my MU blogs. Any idea what might be causing this?

3) Another question: Will my “all” blog keep importing posts from other blogs automatically as I keep posting, or do I have to keep doing an update in “all” ?

This is the error I am seeing when try to populate posts. Any clues?

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This webpage has a redirect loop
The webpage at https://<MYSITE&gt;.com/blog/wp-admin/ms-admin.php?page=sitewidetags&action=populateblogs&_wpnonce=033555deb8&_wp_http_referer=%2Fnotes%2Fwp-admin%2Fms-admin.php%3Fpage%3Dsitewidetags&populate_blog=8&updated=1 has resulted in too many redirects. Clearing your cookies for this site or allowing third-party cookies may fix the problem. If not, it is possibly a server configuration issue and not a problem with your computer.
Here are some suggestions:
Reload this web page later.
Learn more about this problem.
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2 – it;s buggy

3 – the tags blog will update when you post to the others blogs, automatically