In Fiverr there are many gigs like:
SOCIAL bookmark to your multiple URLs to 200 social bookmark sites in 4 hours
create 300 Social bookmarks+ 1000 wiki links to your website ,best social bookmarking and wikilinks combo
300 Social Bookmarks for your site with full report
All of them has high positive reviews...
Will I still use them as its quite clear that these sellers will use software or tools?