In this survey paper we present the natural applications of certain integra
l inequalities such as Chebychev's inequality for synchronous and asynchron
ous mappings, Holder's inequality and Gruss' and Ostrowski's inequalities f
or the celebrated Euler's Beta and Gamma functions. Natural applications de
aling with some adaptive quadrature formulae which can be deduced from Ostr
owski's inequality are also pointed out.