However, it features the advantage to skip the atom-dependent empirical parameterization specific to tight-binding-based methods, and (partially) free the Kohn-Sham guess from SIE by using hybrid exchange-correlation approximations. Since tight-binding linear-response equations derive from a nonhybrid exchange-correlation approximation, the risk of finding 'ghost excitations' persists, especially when the charge-transfer length increases. Nevertheless, Visscher and cowokers recently demonstrated that TD-DFT+TB could be successfully applied to compute plasmonic excitations in complex noble metal architectures. Another step further, that can still be view as a complement to TDDFT approximations, is the simplified variant of TDDFT. Dubbed sTD-DFT (or sTDA in its original Tamm-Dancoff version ), the approach introduces 3 main approximations strongly alleviating the TDDFT computational effort while conserving the use of global-or range-separated hybriddensity functional approximations. Some benchmark investigations already revealed the excellent efficiency/accuracy trade-off of sTDA and sTD-DFT in modeling the photoabsorption spectra of large organic and organometallic systems. They are thus expected to be of high potential to investigate the excited properties of nanomaterials.