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The weekly crawl website report is telling me that there are pages that have missing meta description tags, yet I've implemented meta robots tags to 'noindex, follow' those pages which are visible in those page source files. As far as Google Is concerned, surely this then won't be a problem since it is being instructed NOT to consider these specific pages for indexing. I am assuming that the weekly SEOmoz website crawl is simply throwing the missing meta description crawl findings into its report without itself observing that the particluar URL references contain the meta robots 'noindex,follow' tag ???? Appreciate if you can clairfy if this is the case. It would help me understand that (at least in terms of my efforts towards Google) your own crawl doesn't observe the meta robots tag instruction, hence the resultant report's flagging the discrepancy.

Have a Twitter account and theres much confusion over Twitters use of planting keywords into posts and have some SEO benefit from this. Wondering if anyone has come accross an effective use of promoting keyterms on by twitter posting and how often is deemed okay? Generally see some twitter users who are obvioulsy promoting keyterms for their buisness or company who put in as much as five to ten posts in any one day for the same keyword, or keyphrase. while this looks spammy surely this is liable to be flagged by the search engines? Appreciate any insights on this.