Forum Moderators: skibum
How good are Amazon recommendations, and do they convert well? Or is it better to select books by myself (even if I can only use 2nd hand opinions)?
Spend some time reading the Amazon reviews in your area, and look at sales ranks. Feature newer and/or best-selling titles, as a starting point. Solicit reviews from your visitors (offer a monthly contest as an incentive, or something).
If you want more opinions, there is an Associates discussion board at Amazon, and if you browse through old posts you'll find plenty of complaints about Rec. Prod. Links. Apparently, they serve up generic ads when there is a connectivity problem, for example.
Good luck!
Although I mostly use direct product links, I throw in some RPL for variety - usually on more "general" pages that don't talk about specific products. They do convert, although not as well as direct product links; from the things that are purchased through them, I'd guess they're getting mostly impulse buys. ("Oh, that looks interesting.") I certainly wouldn't use them instead of direct product links.