SEOPTI - 2:50 am on Jul 17, 2013 (gmt 0)
Usually one year to index a long tail site and additional one year to see some traffic (look out for "appeared in search" in Bing WMT). Just my experience.
It's slow as hell but the traffic is good as hell and it converts all the time.
Quality on topic links still play a major role, more quality on topic links = better indexing.