While reading the comments on one of J.D.’s recent posts, I got the distinct impression that many of his readers (and likely mine as well) aren’t yet familiar with the concept of affiliate links or how to spot them.
That’s unfortunate. It means that many savers/investors are being exposed to a significant conflict of interests of which they’re more or less unaware.
Here’s the skinny: Affiliate links are links that allow a blogger to receive a commission when somebody clicks the link and buys (or in the case of bank accounts, signs up for) the linked-to product or service. This is important for people to know because:
- Some banks and brokerage firms offer affiliate programs, while others do not, and
- The size of the commission varies considerably from bank to bank or from brokerage firm to brokerage firm.
End result: There’s a conflict of interests between us (the bloggers) and you (the readers). We benefit–in a short-term way at least–when we get you to sign up for the best-paying products and services. You benefit when you sign up for the best products and services.
Be Wary of Review Posts
This blog has roughly 900 subscribers at the moment. If I wrote a post reviewing Ally Bank’s money market account (which I really do use, and really do like), it’s likely that a person or two would sign up (at $40 commission each). What’s relevant here though is that the better I do at selling you an Ally money market account rather than just reviewing Ally’s money market, the more money I make.
Further, if the article ended up ranking near the top of Google search results for “Ally Bank money market” or “Ally Bank review,” the article could turn into an ongoing source of revenue for my business. (And again, the better job I do of selling Ally Bank, the greater the ongoing revenue I’d receive.)
To be clear: This isn’t to say that all review posts are crammed full of lies. I don’t believe that to be the case at all. But when you encounter a review post online, you should know that the blogger likely benefits if you buy the product or service being reviewed.
Common Affiliate Programs
In the personal finance realm, there are several affiliate programs. Some of the more popular ones include:
- Brokerage firms: Betterment, Scottrade, Zecco, TradeKing, TradeMonster, ShareBuilder, OptionsHouse, optionsXpress, and E*Trade
- Banks: Ally Bank, ING Direct, EverBank, WT Direct, and HSBC Direct
- Credit cards: Too many to list!
- Lending Club
- Turbo Tax
This is not to say that the above companies are bad companies or that those of us who write about them are dishonest. But it’s no coincidence that you see so many more Lending Club and ING review posts than Bank of America review posts.
How to Spot an Affiliate Link
There are generally three ways to spot an affiliate link, and they all involve checking the url to which the link points. (This can be done by mousing over the link and looking in the bottom left of your browser window.) The things to look for are:
- An affiliate tag at the end of the url,
- A completely gibberish url, or
- An internal link to a redirect file (usually located in a “go” or “redirect” directory).
Example links with a tag at the end of the url:
- This is the hosting company I used to use. (The “304644” tells Dreamhost that I’m the one who sent you.)
- You should buy this book! (The “tag=obliviousinve-20” tells Amazon that I’m the one who sent you.)
Example link with gibberish url:
- I do not have a savings account with this company. (An affiliate link to ING Direct.)
Example link pointing to a redirect file:
- Free online personal finance software. (This would redirect you to one of those gibberish urls, which would in turn send you to Mint.com.)
Any Questions?
From a business perspective, affiliate programs are here to stay. They’re profitable for both the linked-to businesses and for the bloggers promoting them. (About 8% of my own income is from affiliate programs.)
But it’s important that you understand how they work and how they can influence (whether consciously or not) the way in which bloggers describe a product/service.


Hi. I'm Mike Piper, the author of this blog. I'm 



