pagetitles_bypath
This Drupal module will allow you to assign Page Titles by path instead of node.  It extends the nodewords_bypath module that allows you to add meta keywords and descriptions by path. 
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twitter_feed
This Drupal module will grab a user's Twitter feed and display it on your site.  The module will also allow you to manage:
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5 Essential Drupal Modules for SEO
Here at Avatar New York, we frequently use the open source Content Management System (CMS), Drupal, to build most of our content heavy websites.  In my opinion it's one of the best CMS's out there.  With that being said, it still has a few quirks.  One of my complaints is that it doesn't have a whole lot of SEO features built into the core (although it does provide for search engine friendly URL's via mod_rewrite).
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RSS RSS feed - subscribe to "drupal"

Twitter Feed

posted:
10:54 AM 02/01/2012
#Infographic - Increase Click-Through Rates For Your #Tweets: http://t.co/c3HoLK6W via @rww @mrpatrick
What they're saying

Tattoo art is like no other since your body becomes the canvas that you carry with you. As the first site to offer downloadable line art for tattoo seekers, I cannot express how much Avatar worked with us to see our vision through. They were not only concerned with the look of the site, but also with technological aspects of the site. Using the Drupal System, we can manage our site with ease, which is perfect for a non-techy guy like me. Everyone I know and everyone that comes across our site thinks it rocks! Just read our customer testimonials.

Victor Modafferi, Owner and Founder Bull’s Eye Tattoos