Anyone here have any experience using bookmarking software? Did you experience good results? Can you quantify the purchase?
Onlywire works fine for me as a tool for bookmarking, and you can install the plugin for free on Firefox.
When you say "results" what do you mean? If your desired end result is to get content/pages indexed, then, yes, I would say I saw good results. If your desired end result was to improve rankings, then, no, I would say that I have not seen good results. It really depends on how you use it and what you are trying to accomplish. I don't know what you mean by saying "quantify the purchase"...
You can use, various tools available for bookmarking and backlink building namely web 2.0 mayhem, Traffic Bug and linkvana. They are worth the money...
I don't think that such software will help you much as highly popular social bookmarking websites are very strict to automated services. Thus it is necessary for you to start building links manually.
Socialbot is a cheep one to go for, only it really needs an update, most of the listed bookmarking sites won't let you register!!!