I was just checking over my backlinks and the ones that seem to be giving me the most link juice are the ones that i created manually by scrapebox.
It cost me $50 and the amount of things you can do with it is just simply staggering.
I recently did a few trackback blasts and found i managed to get quite a few to stick which is good. its nice to know if you do it right you still can get the automation side of scrapebox to be effective.
However comment blasts are long dead, find the sites and then manually comment on each one.
I have 10 pr4 backlinks pointing to my site that took me 1-2 mins each to read the post and leave a relevant comment. its realy not that hard.
if anyone is new to IM and looking for a bit of software to get them started, i highly suggest you get this.