If you can maintain two separate BLOGS that's very good as SFI and TripleClicks are two different entity though they are bound by a common link called affiliates. However, the benefit of the BLOG depends on the good content of what and how you represent it to online surfers.
And if the contents of your BLOG is reader (visitor) friendly, it'll be easier to present them in a single BLOG lessening your maintenance load of the BLOGs getting the same results as that of from two BLOGs.
However, I would prefer a single BLOG for both SFI and TripleClicks for you.
If you can maintain two separate BLOGS that's very good as SFI and TripleClicks are two different entity though they are bound by a common link called affiliates. However, the benefit of the BLOG depends on the good content of what and how you represent it to online surfers.
And if the contents of your BLOG is reader (visitor) friendly, it'll be easier to present them in a single BLOG lessening your maintenance load of the BLOGs getting the same results as that of from two BLOGs.