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If it was me making the site,I'd probably look at having something like Mastop Go2 module:
http://www.mastop.com.br/produtos/go2/
I'd create an image/banner for seasonal periods, to promote those special reviews for say Valentines day.
For bloggin you could always consider using the Xigg module, looks rather cool, it's a clone of Digg, so people could dig those reviews on your website:
Forum post about XiggYou could also consider something like Smart Sections from the Smart Factory, that's a pretty cool content module to use:
http://smartfactory.ca/
I'm not sure if XOOPS supports block cloning yet, but if it does you could use that to handle content on the front page from the module blocks.
For mapquest or something similar you could always consider using EFQDirectory:
http://www.efqdirectory.com/
Hope this is of some help to you.
I'd love to see the final product when your done.
Kind Regards.
Tom
http://bassmanthemes.com
http://www.xoopslance.com