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Looks pretty good - thanks!

I don't disagree with the sentiment but have never actually had any trouble with this.  For these types of subpages/landing pages, I don't need thousands of links to rank well -- generally a limited number with the right anchor text.

Any ideas on a crowsourced or up-to-date list or does this not seem to exist?

Well I'm open to other suggestions but I see social bookmarking as one of the few ways to get anchor-specific links to a wide variety of subpages.

My situation is that I have created several dozen landing pages for specific keywords. To get these to rank really well, I need those types of links. Because they are primarily landing pages, it's unlikely that they are going to generate many natural links. And with several dozen of them, I need a process that's easily repeatable and social bookmarking seems like a reasonable part of that process.  Other ideas?

It's always frustrating to do a search for something like "do-follow social bookmarking sites", find a list and then find out through trial/error that many of them have switched to no-follow, are no longer around, etc.

That's why I thought a crowd-sourced list might be more interesting and up-to-date. Any thoughts?

I've seen something very similar over the past couple of months. It seems like Google generally picks right and I'm pleased with the changes.  However, it has occasionally ranked less relevant pages for the keyword and I've seen traffic drop as a result.

Thanks for the suggestion. I've found Copyscape to be okay if there is overt plagiarism but not particularly effective at the phrase-level so am hoping for something else.

I create a lot of landing pages for individual keywords on my site. An issue that I've run into is I unknowingly use some common phrases repeatedly on different pages and therefore sometimes get dinged by Google.

I'm basically looking for a tool that would check the content of a new page against all the other pages on my site and check it phrase by phrase.  Most of the tools I've found make you put in two URLs to check against - I need it to check against hundreds.

I've seen something very similar over the past couple of months. It seems like Google generally picks right and I'm pleased with the changes.  However, it has occasionally ranked less relevant pages for the keyword and I've seen traffic drop as a result.