Glue

1. Data Glue

1.1. Mashups

1.2. cross-app integration (web apps)

1.3. Governance

1.4. Data "federation" (looking across apps at data sets)

1.5. integration of data clouds w/ internal data sets

2. Infrastructure Glue

2.1. Scaling services (ie, Gnip)

2.2. Cloud

2.2.1. gluing internal and external clouds

2.3. API services (ie, mashery)

2.4. Web app management

2.5. Legacy integration

3. Messaging Glue

3.1. XMPP

3.2. Microformats

4. Synchronization Glue

4.1. devices and data (ie, Live Mesh)

5. Event-driven Architecture

5.1. event-driven processing

5.2. event stream processing

5.3. complex event processing

6. WOA

6.1. RESTful stuff

6.1.1. REST vs. SOAP

6.2. APIs

6.3. data portability

6.4. meta-data

6.5. Google Protocol Buffers vs. Facebook Thrift

7. Identity Glue

7.1. SSO

7.1.1. SAML

7.1.2. WS-*

7.2. Internet Identity

7.2.1. OpenID

7.2.2. FacebookConnect

7.2.3. OAuth

8. Content Glue

8.1. widgets

8.1.1. "pervasive federation" vs. "mass aggregation"?

8.2. feeds

9. Context Glue