The maps are shown with Israel Map in the background. However, primary criteria that was used to decide about various details was the clearence of representation of Israeli Internet structure. I've neglected other details such as geographical accuracy or scale when I had to choose between them or the legibility of the structure. Besides, its very hard to be accurate in geographical scales, since most of the NAPs (Network Access Points) are concentrated in urbanial areas.
Ratio of the maps is changed (doubled horizontal size) in order to suite better standard display. Its divided to few color regions according to Bezeq telephone access codes (02, 03, 04, 06, 07, 08 and 09). ISPs tend to open POPs in each code area. So the location of the POP in specific color zone shows only in what code area its located and not the actual geographical location.
Foreign sites to Israel are placed around the country in random order.
There is not networks that span multiple maps. However most of Israeli
networks are connected to IIX,
which is shown by 
symbol. IIX is single router, located
in Gush-Dan (in IEC building in Tel-Aviv), which handles all internetwork
traffic local to Israel. Similiar eachange points exists in other countries,
like CIX - Comercial Internet eXchange in USA,
LINX - London InterNet eXchange and
D-GIX - Global Internet eXchange in
Stockholm. The list of all currently known
Exhange Points
is maintained.
Lines' width is scaled according to line bandwidth, visualizing better the scheme. All numbers are in bits, for example 256K means line with bandwidth 256 KiloBits/Second.
If you have any ideas that can improve or make these map more accurate don't hesitate to mail me at john@neystadt.org about this.