  The first part of this paper is a short review of the construction
[dg-ga/9710001] of invariants of rational homology 3-spheres and knots in terms
of configuration space integrals.
  The second part describes the relationship between the above construction and
Kontsevich's proposal of removing one point from the rational homology sphere.
Explicit formulae are computed. In the case of the "Theta" invariant, a
comparison with Taubes's construction is briefly discussed.
