randle - 3:07 pm on May 19, 2011 (gmt 0)
Possible Plan of Action to Consider;
Try not to panic, very often things will just return to normal. Could just be a temporary Google anomaly.
Don't change anything on the site till the dust settles a bit, and you feel much more confident on what the problem might be.
In terms of numbers we don't ever exceed 20 - 30 links per week and we mix it up.
Go back at least 4 weeks and completely scrutinize these links you have been "generating". Maybe you got er,, a bad batch shall we say. Generally speaking, if you are the one in control of the links that point to your site, your creating a bit of a profile wether you realize it or not.
If you don't currently do any PPC, its times like these that provide the proper perspective on that form of traffic. If you get knocked down, try and come out of it stronger than before.