Most Valuable Research Topic

I am a college senior and I have to do a 20 minute presentation on one of the following topics. Which of these do you think would be the most valuable to have a deeper understanding of in the networking field?

Dynamic DNS
HSPA and HSPA+
VRRP and HSRP
HDMI technology
Virtualization (overview and products)
Citrix
VMWare View
VPNs
Fixed Wireless (WIMAX)
LTE
Experimental Technologies (anything up and coming)
DWDM
Undersea Cable Technology
SSH
RFC History/IETF standardization process
SuperComputers
Rainbow Tables, Hashing, Password Security
xDSL technologies
VoIP
IPTV
DOCSIS
GSM vs. CDMA vs. ???
LTE
5th Gen Cellular
ATM Fundamental Architecture and Model
ATM Segmentation and Reassembly Layer
DNS Fundamentals and the DNS Lookup Process
TFTP, FTP and Secure FTP
ICMP Services
SNMP
MIME
PPP
BootP and DHCP
HTTP and HTML
SMTP
Network Security Management Fundamentals
RIP and RIPv2
ISDN Architecture and Protocols
POP3 and IMAP
MPLS Architecture Fundamentals