This article describes an account of some of our polyoxometalate (POM)-based research, we have been doing in our laboratory last several years. There are several well-defined POM cluster anions, that are structurally characterized. We have chosen Anderson-type of heteropolyanion [Al(OH)₆Mo₆O₁₈]$^{3−}$ and explored its linking propensity in different dimensions using `s', `d' and `f' block elements as linkers.We have demonstrated how a lanthanide linker provides a new pathway in forming a two-dimensional linked {As₈V₁₄} system [{Ln(H₂O)₆}₂As₈V₁₄O₄₂(SO₃)]$_n$.8nH₂O, that is derived from discrete {As₈V₁₄} cluster containing compound (NH₄)₆[As₈V₁₄O₄₂(SO₃)]. A polyoxometalate compound has been described in which a reduced tungstovanadate-heteropolyanion clusters get linked via capped V = O groups into one-dimensional chains. All these systems have already been reported elsewhere. The last portion of this article will be described by a new system [3-ampH]₆[V₁₀O₂₈]$\cdot$2H₂O having discrete molecular structure and extended supramolecular structure.