After looking at this article you’ll find the positive and negative places to get links.
Let’s obtain the bad stuff taken care of first. Link brokerage is usually bad. There are several reasons. Firstly Google can readily detect those back links using reverse engineering and penalize your rankings. Second of, they generally link in the market to spammers and do not produce good results when it comes to rankings.
1) Paid directories: Spammers prefer quantity over quality. Payment often serves as a good barrier to entry. Because of this a spammer will try to place links on 1000 ineffective directories and prevent spending money on the high-quality directories. Virtually all paid directories have staff that reviews submissions. Search engines like google like sites reviewed by humans and give them more trust. Priciest directories are dir.Yahoo.com and business.com.
You need to review them manually, because unfortunately some of them change to the worst. During the time of this writing they can be still good. Also Examine your local directories (especially effective for local brick-and-mortar businesses)
This is what you should check: Do they accept all listings automatically after you pay them? If so it’s not a good sign because spammers may buy links also. How what are backlinks seo does the directory have? How many times does it get crawled by Google (check info.directorydomain.com to find out last cached date)? Precisely what is their Alexa rankings (simply how much traffic will they get)?
It is possible to exchange links with directories, but only if they’re vertical directories relevant to your industry. A great approach is to produce a directory yourself and populate it with listings. Apply it to prrlinks to directories which need a link back to acquire a free of charge listing. Never link to low quality directories.
Carefully examine the “directory submission services”, in many cases they own all the directories which they’re submitting. This will likely create low quality backlinks for often astronomical prices.
2) Donations: Many non-profit organizations have a listing of people that created a donation. You can often produce a small donation and have the link to your blog. Most of these places have common keywords on-site like “nfp”, “npo” etc. Try searching for these keywords to locate these organizations.