This is just a suggestion on the better use of open space on the front page of the site to better navigate and would also generate ad revenue for the site.
Following Gallery
This would work like the Public Gallery but only display for images posted by those you follow. It could be added as a toggle under the Gallery button, allowing for people to filter down to just the people/stores they follow.
Unused Space
Preview Gallery
The Preview Gallery would specifically create a preview window that could be toggled between several options, Public Gallery, Followed Gallery, Event Gallery and Ad Gallery.
Depending on the users choice it would show the latest postings of each category filtering for only postings with images.
Marketplace Ads + Banners + Gallery
This would generate revenue for the site, allowing people to post ads for their stores/events that would cycle through for a set amount of time. To prevent malware redirects the form to fill out and post these ads could have prefilled boxes for Market place and SL Map redirects, or Primfeed pages. While people are often not fans of ads, using the ad space for SL venues, stores and events would be preferable, and give stores a bigger reach on the platform and tempt more store owners to move here instead of other outside platforms.