I think link building is good as compare to directory submission. If are you able to get good links from good PR sites than it will more useful.
Thanks for such a nice article directory list shared here on this thread. thanks for sharing your all article directory list. it's useful
here's the some sites http://www.articlealley.com/ http://www.affiliate-goldmine.com/cgi-bin/vp/articles.cgi?action=add http://www.agora-business-center.com/ http://www.bettermanagement.com/library/library.aspx?libraryid=3193 BloggerSupport.com http://bloggersupport.com/submit-articles.pl http://www.businessandlaw.com/form.php http://www.bpubs.com/cgi/add.cgi http://www.businessclique.com/ http://www.businesshighlight.org/user-submit-article http://www.businessknowhow.com/newsletter/(443snujso0yt20aq23ulxgu5)/articleguidelines.aspx# http://businessknowledgesource.com/submitarticle.html http://www.businesstoolchest.com/articles/submit.shtml http://www.business-marketing.com/contact-us.html http://www.ceoclubs.org/main/publications.htm#newsletter http://www.ceofactor.com/chapter1_ceo_factor_guidelines.html http://www.completelyvirtualbulletin.com/ http://www.coolavenues.com/know/hr/index.php3 http://www.crazycolour.com/os/sendarticle.shtml http://www.creatingloyalty.com/submit/ http://www.credit-and-collections.com/articles.html http://www.customerservicecareers.com/Job_Search_Resources/job_search_resources.asp http://www.daytimer.com/Time-Management-Resources/home/74686040565B4CB3AF39289C4AB837DF/False http://www.debtfinancearticles.com/submit.php http://www.ebusiness-articles.com/Register.aspx http://www.ebusinessbasics.com/articles/guidelines.htm http://www.emoneymonthly.com/submit.html http://www.eep.com/Merchant//newsite/published.htm http://fabaroo.com/articles/submit-article/ http://www.financial-portal.com/article_submission.html http://www.findaseminar.com/ http://www.freelancemom.com/articles.htm http://www.gpcc.com/newsletter/article.asp http://www.homebiznow4u.com/portal/ http://www.how-to-make-money-online.info/modules.php?name=Submit_News http://www.ibizresources.com/contact.htm http://www.impactarticles.com/ http://www.inc.com/ http://internationalpractice.com/business/ http://www.ivwcc.org/ http://www.internetbasedmoms.com/submission_guidelines.htm http://www.e-isn.com/home/add-article.php http://www.jobbankusa.com/writer.html http://www.leadership-tools.com/submit-an-article.html http://www.leader-values.com/ http://www.thelccn.com/ArticleSubmission.aspx http://www.linkageinc.com/company/news_events/link_learn_enewsletter/contribute.aspx http://www.lyonsinternational.com/ http://www.managementconsultingnews.com/editorial_guidelines.php http://www.managerwise.com/ http://www.nmoa.org/authguid.htm http://www.noviceinvesting.com/Article/submitguidelines.php http://www.iaap-hq.org/officepro/auth_guide.htm http://www.officinado.com/submit_a_review.php#submit http://www.articlebiz.com/submit_article/ http://www.articlecity.com/article_submission.shtml http://mst.com.ua/articles/add-own.php http://www.pagecrafters.net/article_submission.html http://www.partyplanwahm.com/ http://www.personal-finance-hq.com/authors/index.html http://www.juliahyde.com/free_articles.html http://www.articledashboard.com/ http://www.powerpointers.com/contactus.asp http://www.quick-cash-directory.com/newsletters/ http://www.realestatepropertyarticles.com/submit.php http://www.rssherald.com/ http://www.salesnewz.com/ http://www.salesvault.com/artman/publish/index.shtml http://www.salesvantage.com/Contact_Sales/contact_sales.php http://www.articledepot.co.uk/ http://www.selfstartersweeklytips.com/ http://www.selfemployedweb.com/submissions.htm http://smartbizconnection.com/ http://www.smartpros.com/standard/Forms/education_contact13.asp?category=pitch http://www.articlefeeder.com/ http://www.storeops.com/modules.php?name=Submit_News http://www.successnet.org/publishers/ http://www.superperformance.com/ http://www.talkfreelance.com/ http://www.business-opportunity.biz/addarticle.php http://www.contactpoint.ca/cjcd/pages/submitarticle.html http://www.refresher.com/ceob2.html http://www.corporate-citizenship.co.uk/employees/content.asp http://www.theentrepreneurnet.com/contact_us.html http://www.forumseeders.net/index.php?option=com_comprofiler&task=registers http://www.theglassceiling.com/wib2/ http://www.profitgazette.com/submit-article.php