Pligg is a commonly used social bookmarking package, similar to digg. There are loads of these type of sites that you can drop a backlink on - BUT - most of them are spammy as hell, and most of the pages on them don't even get indexed. Though I'm very surprised that someone who writes a free wordpress blog on SEO strategies didn't know that. It's almost as though you're writing about something you don't know anything about
pligg is platform which is use to make bookmarking website search term "pligg sites" i ca get lot of list of bookmarking site
I found a forum that already discussed about it. Here is a List of 9000 Pligg Sites. (I still haven't have the priviledge to post links so please add http:// part.) Here is another list:
hi Pligg is an open source content management system that powers thousands of websites. For those who are looking to start their own social media site, Pligg is a popular option. It’s free, fairly easy to use and customize, and it’s probably the fastest way for a new social media site to launch.
Why use Pligg? Vertical user generated content. Directories are dead, publishers need an alternative for back links and users need a convenient aggregation of news to fight information over load and save time.
No offense Tom, but what the hell is the point of posting that? People have already answered the question (although why so many people bothered repeating the same thing over and over I do not know!!!) but you didn't answer it anyway. Is everyone here just trying to increase their post count or something?
Pligg site also known as popular CMS, Replica of Digg, Propeller you can change the theme of that to make it similar to digg.com, Once I created one of my site theme same as digg after some day I found that digg do not allow to submit my site's post due to same looking (may be coincidence) but I did not found any specific reason for non-submission of my digg looking site. But you can still enjoy the free social bookamarking site template by pligg, Another issue may be big to you after creation the change of site name (I faced) search in google you will find the answer or then contact me.