Feltnotater

Nye tall fra TNS Gallups InterBuss for tredje kvartal viser at veksten i bruk av Facebook stagnerer. 62 prosent av de som er på nett bruker nå Facebook ukentlig. Det er første gang på tre år at Facebook ikke vokser. Den daglig bruken blant hele befolkningen er på 42 prosent, som er en tilbakegang på to prosentpoeng fra andre kvartal. Det er nå færre som bruker nettstedet flere ganger om dagen.

Amazon will add a neat new feature to its Kindle e-book program later this year, designed to let you loan Kindle e-books to your friends, either via Kindle devices or the Kindle app for the iPhone, iPad, Android, etc.

…”Each book can be lent once for a loan period of 14-days and the lender cannot read the book during the loan period,” Amazon explains.

And perhaps more importantly, publishers will also be able to turn lending off for their books.

Groupon has released a Merchant Center for Groupon Stores, its recently uncovered self-service platform that businesses can use to set up virtual store fronts to promote and run their own deals.

The Merchant Center packs a host of information on the new product offering and appears to be open for business — interested parties can now sign up to set up their own Groupon Store and create deals.

I think this is only the beginning. If you follow the trends out a few years, it could well be that mobile usage of many internet apps will surpass web usage. This is already the case with apps like Foursquare and Instagram. But think about apps like Facebook, Twitter, Tumblr, and Yelp. I can see all of these services having more usage on mobile than web in the not too distant future.

- Fred Wilson - AVC.com

The three biggest usage spikes tend to occur on weekdays at 11:00 a.m., 3:00 p.m. and 8:00 p.m. ET.

The biggest spike occurs at 3:00 p.m. ET on weekdays.

Weekday usage is pretty steady, however Wednesday at 3:00 pm ET is consistently the busiest period.

Fans are less active on Sunday compared to all other days of the week.