The data repositories forming the initial core of VObs.it are the following:

• The INAF centre for Astronomical Archives (IA2) has opened public access to raw data of all TNG instruments (OIG, NICS, SARG and DOLoRes) with all relevant calibration files. TNG housekeeping and meteo telemetry will be also soon available. The system has been designed from start so as to be VO-compliant: Cone Search is allowed, SIAP is supported as a Web service for data access, and the results of database queries may be returned as VOTables (see http://wwwas.oats.inaf.it/IA2 ).
  

• INAF OATo, in close collaboration with STScI, aims at giving VO-compliant access to DSS-II and GSC-II, both the databases and the all-sky uncompressed images, currently stored off-line only at STScI and available, in a x10 compressed mode, in some institutes throughout the world. The archive design is being currently finalised, and takes into account all relevant IVOA standards (ADQL, SIAP, Cone Search, VOTable). Data are planned to be on-line within a year from kick-off.

• To allow exploitation of the VIMOS-VLT Deep Survey (VVDS) a versatile system of queries supporting searching by different parameters, according to the specific scientific goal to be tackled, is being designed, using the VVDS-CDFS data set (see http://cosmosdb.mi.iasf.cnr.it ) as test-bench. Four different VO-compliant services will be provided: ConeSearch, SIAP, ADQL, SSAP.

• Extension of VObs.it to include the future archives (e.g. starting from LBT/SDT (Science Demostration Time) data and then the raw LBT and science LBC data, VST) is foreseen.

• BaSTI (a Bag of Stellar Tracks and Isochrones) is a widely-used database of theoretical stellar evolution predictions specifically suited for population synthesis analysis (http://www.oa-teramo.inaf.it/BASTI/index.php). Its capabilities will be extended by exploiting Grid capabilities, while guaranteeing VO compliance; standards expected to be used are VOTable and access to computing resources using an extension of CEA to the Grid.

• The Italian Theoretical Virtual Observatory (ITVO) initiative aims at creating a distributed database of simulated data accessible to the community. ITVO will make use of all relevant VO standards (e.g. SNAP) and tools, and will be fully interoperable with VO-compliant databases of observational data within VObs.it.

• A key extension of the VObs.it initiative is the involvement in VObs.it of ASDC, the ASI Science Data Center (http://www.asdc.asi.it/). Its Multi-Mission Archive contains a wealth of information on high-energy space missions, and scientific and technical expertise for the processing and interpretation of the data hosted is available. Furthermore, the software systems developed for the access, analysis and comparison of archival high-energy data will be precious material for the VO community. Contacts have started aimed at training of ASDC staff, so as to allow implementation of VO-compliant ASDC services.