Akismet: http://wordpress.org/extend/plugins/akismet/
Platinum SEO: http://wordpress.org/extend/plugins/platinum-seo-pack/
Google XML Sitemap: http://wordpress.org/extend/plugins/...map-generator/
WP Pagenavi: http://wordpress.org/extend/plugins/wp-pagenavi/
Contact Forum 7: http://wordpress.org/extend/plugins/...t-form-plugin/
WP Super Cache: http://wordpress.org/extend/plugins/wp-super-cache/
SEO Smart Links: http://wordpress.org/extend/plugins/...tomatic-links/
SEO Friendly Images: http://wordpress.org/extend/plugins/seo-image/